Aperçu d'exemples
Content Addition | Document Setup | Imposition | Information Extraction | Content Modification
Content Addition
Add barcode to PDF
Generate and add a barcode at a specified position on the first page of a PDF document.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create file stream
using (Stream fontStream = new FileStream(fontPath, FileMode.Open, FileAccess.Read))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, inDoc.Conformance, null))
using (Font font = outDoc.CreateFont(fontStream, true))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Loop through all pages of input
for (int i = 0; i < inDoc.Pages.Count; i++)
{
// Copy page from input to output
using (Page inPage = inDoc.Pages[i])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
if (i == 0)
{
// Add barcode to first page
AddBarcode(outDoc, outPage, barcode, font, 50);
}
// Add page to document
outDoc.Pages.Add(outPage);
}
}
}private static void AddBarcode(Document outputDoc, Page outPage, string barcode,
Font font, double fontSize)
{
// Create content generator
using (ContentGenerator gen = new ContentGenerator(outPage.Content, false))
{
// Create text object
using (Text barcodeText = outputDoc.CreateText())
{
// Create text generator
using (TextGenerator textGenerator = new TextGenerator(barcodeText, font,
fontSize, null))
{
// Calculate position
Point position = new Point
{
X = outPage.Size.Width - (textGenerator.GetWidth(barcode) + Border),
Y = outPage.Size.Height - (fontSize * (font.Ascent + font.Descent) + Border)
};
// Move to position
textGenerator.MoveTo(position);
// Add given barcode string
textGenerator.ShowLine(barcode);
}
// Paint the positioned barcode text
gen.PaintText(barcodeText);
}
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create file stream
fontStream = new FileStream(fontPath, "r");
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, inDoc.getConformance(), null);
// Create embedded font in output document
Font font = outDoc.createFont(fontStream, true);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (int i = 0; i < inDoc.getPages().size(); i ++)
{
Page inPage = inDoc.getPages().get(i);
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
if (i == 0)
{
// Add barcode to first page
addBarcode(outDoc, outPage, barcode, font, 50);
}
// Add page to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}private static void addBarcode(Document outputDoc, Page outPage, String barcode, Font font,
double fontSize) throws ErrorCodeException
{
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Create text object
Text barcodeText = outputDoc.createText();
// Create a text generator
TextGenerator textgenerator = new TextGenerator(barcodeText, font, fontSize, null);
// Calculate position
Point position = new Point(
outPage.getSize().width - (textgenerator.getWidth(barcode) + Border),
outPage.getSize().height - (fontSize * (font.getAscent() +
font.getDescent()) + Border)
);
// Move to position
textgenerator.moveTo(position);
// Add given barcode string
textgenerator.showLine(barcode);
// Close text generator
textgenerator.close();
// Paint the positioned barcode text
generator.paintText(barcodeText);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create file stream
pFontStream = _tfopen(szFontPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pFontStream, _T("Failed to open font file."));
PdfCreateFILEStreamDescriptor(&fontDescriptor, pFontStream, 0);
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, PdfDocumentGetConformance(pInDoc), NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
pFont = PdfDocumentCreateFont(pOutDoc, &fontDescriptor, 1);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Failed to create font. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption pCopyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, pCopyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
PdfPageGetSize(pOutPage, &size);
if (iPage == 0)
{
// Add barcode to first page
if (addBarcode(pOutDoc, pOutPage, szBarcode, pFont, 50) == 1)
{
goto cleanup;
}
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
int addBarcode(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TCHAR* szBarcode, TPdfFont* pFont, double dFontSize)
{
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
TPdfText* pBarcodeText = NULL;
TPdfTextGenerator* pTextGenerator = NULL;
pContent = PdfPageGetContent(pOutPage);
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create text object
pBarcodeText = PdfDocumentCreateText(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pBarcodeText, _T("Failed to create a text object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create text generator
pTextGenerator = PdfNewTextGenerator(pBarcodeText, pFont, dFontSize, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pTextGenerator, _T("Failed to create a text generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate position
TPdfPoint position;
double dTextWidth = PdfTextGeneratorGetWidth(pTextGenerator, szBarcode);
GOTO_CLEANUP_IF_NEGATIVE_PRINT_ERROR(dTextWidth, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dFontAscent = PdfFontGetAscent(pFont);
GOTO_CLEANUP_IF_NEGATIVE_PRINT_ERROR(dFontAscent, _T("%s(ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dFontDescent = PdfFontGetDescent(pFont);
GOTO_CLEANUP_IF_NEGATIVE_PRINT_ERROR(dFontDescent, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
position.dX = size.dWidth - (dTextWidth + dBorder);
position.dY = size.dHeight - (dFontSize * (dFontAscent + dFontDescent) + dBorder);
// Move to position
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorMoveTo(pTextGenerator, &position), _T("Failed to move to position %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add given barcode string
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorShowLine(pTextGenerator, szBarcode), _T("Failed to add barcode string. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Close text generator
if (pTextGenerator != NULL)
PdfClose(pTextGenerator);
// Paint the positioned barcode text
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintText(pGenerator, pBarcodeText), _T("Failed to paint the positioned barcode text. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pBarcodeText != NULL)
PdfClose(pBarcodeText);
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Add Data Matrix to PDF
Add a two-dimensional barcode from an existing image on the first page of a PDF document.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Loop through all pages of input
for (int i = 0; i < inDoc.Pages.Count; i++)
{
// Copy page from input to output
using (Page inPage = inDoc.Pages[i])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
if (i == 0)
{
// Add data matrix as image to first page
AddDataMatrix(outDoc, outPage, datamatrixPath);
}
// Add page to document
outDoc.Pages.Add(outPage);
}
}
}private static void AddDataMatrix(Document document, Page page, string datamatrixPath)
{
// Create content generator
using (ContentGenerator generator = new ContentGenerator(page.Content, false))
// Import data matrix
using (Stream inMatrix = new FileStream(datamatrixPath, FileMode.Open, FileAccess.Read))
// Create image object for data matrix
using (Image datamatrix = document.CreateImage(inMatrix))
{
// Data matrix size
double datamatrixSize = 85;
// Calculate Rectangle for data matrix
Rectangle rect = new Rectangle
{
Left = Border,
Bottom = page.Size.Height - (datamatrixSize + Border),
Right = datamatrixSize + Border,
Top = page.Size.Height - Border
};
// Paint image of data matrix into the specified rectangle
generator.PaintImage(datamatrix, rect);
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (int i = 0; i < inDoc.getPages().size(); i ++)
{
Page inPage = inDoc.getPages().get(i);
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
if (i == 0)
{
// Add image on the first page
addDatamatrix(outDoc, outPage, datamatrixPath);
}
// Add page to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}private static void addDatamatrix(Document document, Page page, String datamatrixPath)
throws ErrorCodeException, FileNotFoundException
{
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(page.getContent(), false);
// Import data matrix
FileStream inMatrix = new FileStream(datamatrixPath, "r");
// Create image object for data matrix
Image datamatrix = document.createImage(inMatrix);
// Data matrix size
double datamatrixSize = 85;
// Calculate Rectangle for data matrix
Rectangle rect = new Rectangle(
Border,
page.getSize().height - (datamatrixSize + Border),
datamatrixSize + Border,
page.getSize().height - Border
);
// Paint image of data matrix into the specified rectangle
generator.paintImage(datamatrix, rect);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Create embedded font in output document
pFont = PdfDocumentCreateSystemFont(pOutDoc, _T("Arial"), _T("Italic"), TRUE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Failed to create font. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
PdfPageGetSize(pOutPage, &size);
if (iPage == 0)
{
//Add text on first page
if (addDataMatrix(pOutDoc, pOutPage, szDatamatrixPath) == 1)
{
goto cleanup;
}
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
}
int addDataMatrix(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TCHAR* szDataMatrixPath)
{
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
TPdfStreamDescriptor datamatrixDescriptor;
FILE* pDatamatrixStream = NULL;
TPdfImage* pDatamatrix = NULL;
pContent = PdfPageGetContent(pOutPage);
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Import data matrix
pDatamatrixStream = _tfopen(szDataMatrixPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pDatamatrixStream, _T("Failed to open data matrix file \"%s\".\n"), szDataMatrixPath);
PdfCreateFILEStreamDescriptor(&datamatrixDescriptor, pDatamatrixStream, 0);
// Create image object for data matrix
pDatamatrix = PdfDocumentCreateImage(pOutDoc, &datamatrixDescriptor);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pDatamatrix, _T("Failed to create image object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Data matrix size
double dDatamatrixSize = 85.0;
// Calculate Rectangle for data matrix
TPdfRectangle rect;
rect.dLeft = dBorder;
rect.dBottom = size.dHeight - (dDatamatrixSize + dBorder);
rect.dRight = dDatamatrixSize + dBorder;
rect.dTop = size.dHeight - dBorder;
// Paint image of data matrix into the specified rectangle
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintImage(pGenerator, pDatamatrix, &rect), _T("Failed to paint data matrix into the specified rectangle. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Add image to PDF
Place an image with a specified size at a specific location of a page.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Loop through all pages of input
for (int i = 1; i <= inDoc.Pages.Count; i++)
{
// Copy page from input to output
using (Page inPage = inDoc.Pages[i - 1])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
if (i == pageNumber)
{
// Add image on chosen page
AddImage(outDoc, outPage, imagePath, 150, 150);
}
// Add page to output document
outDoc.Pages.Add(outPage);
}
}
}private static void AddImage(Document document, Page page, string imagePath, double x, double y)
{
// Create content generator
using (ContentGenerator generator = new ContentGenerator(page.Content, false))
// Load image from input path
using (Stream inImage = new FileStream(imagePath, FileMode.Open, FileAccess.Read))
// Create image object
using (Image image = document.CreateImage(inImage))
{
double resolution = 150;
// Calculate rectangle for image
Rectangle rect = new Rectangle
{
Left = x,
Bottom = y,
Right = x + image.Width * 72 / resolution,
Top = y + image.Height * 72 / resolution
};
// Paint image into the specified rectangle
generator.PaintImage(image, rect);
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (int i = 0; i < inDoc.getPages().size(); i ++)
{
Page inPage = inDoc.getPages().get(i);
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
if (i == (pageNumber - 1))
{
// Add image on chosen page
addImage(outDoc, outPage, imagePath, 150, 150);
}
// Add page to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}private static void addImage(Document document, Page outPage, String imagePath, double x, double y)
throws ErrorCodeException, IOException
{
FileStream inImage = null;
Image image = null;
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Load image from input path
inImage = new FileStream(imagePath, "r");
// Create image object
image = document.createImage(inImage);
double resolution = 150;
// Calculate rectangle for image
Rectangle rect = new Rectangle(
x,
y,
x + image.getWidth() * 72 / resolution,
y + image.getHeight() * 72 / resolution
);
// Paint image into the specified rectangle
generator.paintImage(image, rect);
}
finally
{
// Cleanup
if (image != null)
image.close();
if (inImage != null)
inImage.close();
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Create embedded font in output document
pFont = PdfDocumentCreateSystemFont(pOutDoc, _T("Arial"), _T("Italic"), TRUE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Failed to create font. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T(" Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 1; iPage <= PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage - 1);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
PdfPageGetSize(pOutPage, &size);
if (iPage == iPageNumber)
{
//Add text on first page
if (addImage(pOutDoc, pOutPage, szImagePath, 150, 150) == 1)
{
goto cleanup;
}
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
int addImage(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TCHAR* szImagePath, double x, double y)
{
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
TPdfStreamDescriptor imageDescriptor;
FILE* pImageStream = NULL;
TPdfImage* pImage = NULL;
pContent = PdfPageGetContent(pOutPage);
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
// Load image from input path
pImageStream = _tfopen(szImagePath, _T("rb"));
PdfCreateFILEStreamDescriptor(&imageDescriptor, pImageStream, 0);
// Create image object
pImage = PdfDocumentCreateImage(pOutDoc, &imageDescriptor);
double dResolution = 150.0;
double dImageWidth = PdfImageGetWidth(pImage);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dImageWidth, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dImageHeight = PdfImageGetHeight(pImage);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dImageHeight, _T("%s(ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate Rectangle for data matrix
TPdfRectangle rect;
rect.dLeft = x;
rect.dBottom = y;
rect.dRight = x + dImageWidth * 72 / dResolution;
rect.dTop = y + dImageHeight * 72 / dResolution;
// Paint image into the specified rectangle
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintImage(pGenerator, pImage, &rect), _T("Failed to paint image. to specified rectangle. %s(ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Add image mask to PDF
Place a rectangular image mask at a specified location of a page. The image mask is a stencil mask to fill or mask out the image per pixel.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Get the device color space
using (ColorSpace colorSpace = outDoc.CreateDeviceColorSpace(DeviceColorSpaceType.RGB))
// Create paint object
using (paint = outDoc.CreateSolidPaint(colorSpace, 1.0, 0.0, 0.0))
{
// Loop through all pages of input
foreach (Page inPage in inDoc.Pages)
{
// Copy page from input to output
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Add image mask
AddImageMask(outDoc, outPage, imageMaskPath, 250, 150);
// Add page to document
outDoc.Pages.Add(outPage);
}
}
}
} private static void AddImageMask(Document document, Page outPage, string imagePath,
double x, double y)
{
// Create content generator
using (ContentGenerator generator = new ContentGenerator(outPage.Content, false))
// Load image from input path
using (Stream inImage = new FileStream(imagePath, FileMode.Open, FileAccess.Read))
// Create image mask object
using (ImageMask imageMask = document.CreateImageMask(inImage))
{
double resolution = 150;
// Calculate rectangle for image
Rectangle rect = new Rectangle
{
Left = x,
Bottom = y,
Right = x + imageMask.Width * 72 / resolution,
Top = y + imageMask.Height * 72 / resolution
};
// Paint image mask into the specified rectangle
generator.PaintImageMask(imageMask, rect, paint);
}
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
outDoc.setMetadata(outDoc.copyMetadata(inDoc.getMetadata()));
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Get the device color space
ColorSpace colorSpace = outDoc.createDeviceColorSpace(DeviceColorSpaceType.RGB);
// Create paint object
paint = outDoc.createSolidPaint(colorSpace, 1.0, 0.0, 0.0);
// Loop through all pages of input
for (Page inPage : inDoc.getPages())
{
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add image mask
addImageMask(outDoc, outPage, imageMaskPath, 250, 150);
// Add page to document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}private static void addImageMask(Document document, Page outPage, String imagePath, double x, double y)
throws ErrorCodeException, IOException
{
FileStream inImage = null;
ImageMask imageMask = null;
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Load image from input path
inImage = new FileStream(imagePath, "r");
// Create image mask object
imageMask = document.createImageMask(inImage);
double resolution = 150;
// Calculate rectangle for image
Rectangle rect = new Rectangle(
x,
y,
x + imageMask.getWidth() * 72 / resolution,
y + imageMask.getHeight() * 72 / resolution
);
// Paint image mask into the specified rectangle
generator.paintImageMask(imageMask, rect, paint);
}
finally
{
// Cleanup
if (imageMask != null)
imageMask.close();
if (inImage != null)
inImage.close();
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(_T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(_T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
// Get the device color space
TPdfColorSpace* pColorSpace = PdfDocumentCreateDeviceColorSpace(pOutDoc, ePdfColorSpaceRGB);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pColorSpace, _T("Failed to get the device color space. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Chose the RGB color value
double color[] = { 1.0, 0.0, 0.0 };
size_t nColor = sizeof(color) / sizeof(double);
// Create paint object
pPaint = PdfDocumentCreateSolidPaint(pOutDoc, pColorSpace, color, nColor);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pPaint, _T("Failed to create a transparent paint. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int i = 0; i < PdfPageListGetCount(pInPageList); i++)
{
pInPage = PdfPageListGet(pInPageList, i);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add image mask
if (addImageMask(pOutDoc, pOutPage, szImageMaskPath, 250, 150) == 1)
{
goto cleanup;
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
int addImageMask(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TCHAR* szImageMaskPath, double x, double y)
{
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
FILE* pImageStream = NULL;
TPdfStreamDescriptor imageDescriptor;
TPdfImageMask* pImageMask = NULL;
pContent = PdfPageGetContent(pOutPage);
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Load image from input path
pImageStream = _tfopen(szImageMaskPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pImageStream, _T("Failed to open image mask file \"%s\".\n"), szImageMaskPath);
PdfCreateFILEStreamDescriptor(&imageDescriptor, pImageStream, 0);
// Create image mask object
pImageMask = PdfDocumentCreateImageMask(pOutDoc, &imageDescriptor);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pImageMask, _T("Failed to create image mask obejct. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dResolution = 150.0;
double dImageMaskWidth = PdfImageMaskGetWidth(pImageMask);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dImageMaskWidth, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dImageMaskHeight = PdfImageMaskGetHeight(pImageMask);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dImageMaskHeight, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate Rectangle for image
TPdfRectangle rect;
rect.dLeft = x;
rect.dBottom = y;
rect.dRight = x + dImageMaskWidth * 72 / dResolution;
rect.dTop = y + dImageMaskHeight * 72 / dResolution;
// Paint image mask into the specified rectangle
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintImageMask(pGenerator, pImageMask, &rect, pPaint), _T("Failed to paint image mask. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Add stamp to PDF
Add a semi-transparent stamp text onto each page of a PDF document. Optionally specify the color and the opacity of the stamp.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
using (Font font = outDoc.CreateSystemFont("Arial", "Italic", true))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Get the device color space
using (ColorSpace colorspace = outDoc.CreateDeviceColorSpace(DeviceColorSpaceType.RGB))
// Create paint object with the choosen RGB color
using (paint = outDoc.CreateAlphaPaint(colorspace, alpha, 1.0, 0.0, 0.0))
{
// Loop through all pages of input
foreach (Page inPage in inDoc.Pages)
{
// Copy page from input to output
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Add text to page
AddStamp(outDoc, outPage, stampString, font, 50);
// Add page to document
outDoc.Pages.Add(outPage);
}
}
}
}private static void AddStamp(Document outputDoc, Page outPage, string stampString,
Font font, double fontSize)
{
// Create content generator and text object
using (ContentGenerator gen = new ContentGenerator(outPage.Content, false))
using (Text text = outputDoc.CreateText())
{
// Create text generator
using (TextGenerator textgenerator = new TextGenerator(text, font, fontSize, null))
{
// Calculate point and angle of rotation
Point rotationCenter = new Point
{
X = outPage.Size.Width / 2.0,
Y = outPage.Size.Height / 2.0
};
double rotationAngle = Math.Atan2(outPage.Size.Height,
outPage.Size.Width) / Math.PI * 180.0;
// Rotate textinput around the calculated position
Transformation trans = new Transformation();
trans.RotateAround(rotationAngle, rotationCenter);
gen.Transform(trans);
// Calculate position
Point position = new Point
{
X = (outPage.Size.Width - textgenerator.GetWidth(stampString)) / 2.0,
Y = (outPage.Size.Height - font.Ascent * fontSize) / 2.0
};
// Move to position
textgenerator.MoveTo(position);
// Set text rendering
textgenerator.SetRendering(paint, null, false);
// Add given stamp string
textgenerator.ShowLine(stampString);
}
// Paint the positioned text
gen.PaintText(text);
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Create embedded font in output document
Font font = outDoc.createSystemFont("Arial", "Italic", true);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Get the device color space
ColorSpace colorSpace = outDoc.createDeviceColorSpace(DeviceColorSpaceType.RGB);
// Choose the RGB color value
double[] color = {1.0, 0.0, 0.0};
// Create paint object
paint = outDoc.createAlphaPaint(colorSpace, alpha, color);
// Loop throw all pages of input
for (Page inPage : inDoc.getPages())
{
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add text to page
addStamp(outDoc, outPage, stampString, font, 50);
// Add page to document
outDoc.getPages().add(outPage);
//Cleanup
outPage.close();
inPage.close();
}private static void addStamp(Document outputDoc, Page outPage, String stampString,
Font font, double fontSize) throws ErrorCodeException
{
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Create text object
Text text = outputDoc.createText();
// Create text generator
TextGenerator textgenerator = new TextGenerator(text, font, fontSize, null);
// Calculate point and angle of rotation
Point rotationCenter = new Point(
outPage.getSize().width / 2.0,
outPage.getSize().height / 2.0
);
// Calculate rotation angle
double rotationAngle = Math.atan2(outPage.getSize().height,
outPage.getSize().width) / Math.PI * 180.0;
// Rotate text input around the calculated position
Transformation trans = new Transformation();
trans.rotateAround(rotationAngle, rotationCenter);
generator.transform(trans);
// Calculate position
Point position = new Point(
(outPage.getSize().width - textgenerator.getWidth(stampString)) / 2.0,
(outPage.getSize().height - font.getAscent() * fontSize) / 2.0
);
// Move to position
textgenerator.moveTo(position);
// Set text rendering
textgenerator.setRendering(paint, null, false);
// Add given stamp string
textgenerator.showLine(stampString);
textgenerator.close();
// Paint the positioned text
generator.paintText(text);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&inDescriptor, pInStream, FALSE);
pInDoc = PdfDocumentOpen(&inDescriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file %s.\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, PdfDocumentGetConformance(pInDoc), NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file %s cannot be closed. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Create embedded font in output document
pFont = PdfDocumentCreateSystemFont(pOutDoc, _T("Arial"), _T("Italic"), TRUE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Embedded font cannot be created. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption pCopyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
// Get the device color space
TPdfColorSpace* pColorSpace = PdfDocumentCreateDeviceColorSpace(pOutDoc, ePdfColorSpaceRGB);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pColorSpace, _T("Failed to get the device color space. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Chose the RGB color values
double color[] = { 1.0, 0.0, 0.0 };
size_t nColor = sizeof(color) / sizeof(double);
// Create paint object
pPaint = PdfDocumentCreateAlphaPaint(pOutDoc, pColorSpace, dAlpha, color, nColor);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pPaint, _T("Failed to create a transparent paint. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int i = 0; i < PdfPageListGetCount(pInPageList); i++)
{
// Get a list of pages
pInPage = PdfPageListGet(pInPageList, i);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, pCopyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add stamp to page
if (addStamp(pOutDoc, pOutPage, szStampString, pFont, 50) == 1)
{
goto cleanup;
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
int addStamp(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TCHAR* szStampString, TPdfFont* pFont, double dFontSize)
{
TPdfContentGenerator* pGenerator = NULL;
TPdfText* pText = NULL;
TPdfTextGenerator* pTextGenerator = NULL;
TPdfTransformation* pTrans = NULL;
TPdfContent* pContent = PdfPageGetContent(pOutPage);
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create text object
pText = PdfDocumentCreateText(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pText, _T("Failed to create a text object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create a text generator
pTextGenerator = PdfNewTextGenerator(pText, pFont, dFontSize, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pTextGenerator, _T("Failed to create a text generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Get output page size
TPdfSize size;
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageGetSize(pOutPage, &size), _T("Failed to read page size. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate point and angle of rotation
TPdfPoint rotationCenter;
rotationCenter.dX = size.dWidth / 2.0;
rotationCenter.dY = size.dHeight / 2.0;
double dRotationAngle = atan2(size.dHeight, size.dWidth) / M_PI * 180.0;
// Rotate textinput around the calculated position
pTrans = PdfNewTransformationIdentity();
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTransformationRotateAround(pTrans, dRotationAngle, &rotationCenter), _T("Failed to rotate textinput around the calculated position. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorTransform(pGenerator, pTrans), _T("Failed to modify the current transformation. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate position
TPdfPoint position;
double dTextWidth = PdfTextGeneratorGetWidth(pTextGenerator, szStampString);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dTextWidth, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dFontAscent = PdfFontGetAscent(pFont);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dFontAscent, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
position.dX = (size.dWidth - dTextWidth) / 2.0;
position.dY = (size.dHeight - dFontAscent * dFontSize) / 2.0;
// Move to position
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorMoveTo(pTextGenerator, &position), _T("Failed to move to position. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set text rendering
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorSetRendering(pTextGenerator, pPaint, NULL, FALSE), _T("Failed to set rendering. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add given stamp string
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorShowLine(pTextGenerator, szStampString), _T("Failed to add stamp. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Close text generator
if (pTextGenerator != NULL)
{
PdfClose(pTextGenerator);
pTextGenerator = NULL;
}
// Paint the positioned text
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintText(pGenerator, pText), _T("Failed to paint the positioned text. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pTrans != NULL)
PdfClose(pTrans);
if (pTextGenerator != NULL)
PdfClose(pTextGenerator);
if (pText != NULL)
PdfClose(pText);
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Add text to PDF
Add text at a specified position on the first page of a PDF document.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, inDoc.Conformance, null))
using (Font font = outDoc.CreateSystemFont("Arial", "Italic", true))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Loop through all pages of input
for (int i = 0; i < inDoc.Pages.Count; i++)
{
// Copy page from input to output
using (Page inPage = inDoc.Pages[i])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
if (i == 0)
{
// Add text on first page
AddText(outDoc, outPage, textString, font, 15);
}
// Add page to document
outDoc.Pages.Add(outPage);
}
}
}private static void AddText(Document outputDoc, Page outPage, string textString, Font font,
double fontSize)
{
// Create content generator and text object
using (ContentGenerator gen = new ContentGenerator(outPage.Content, false))
using (Text text = outputDoc.CreateText())
{
// Create text generator
using (TextGenerator textGenerator = new TextGenerator(text, font, fontSize, null))
{
// Calculate position
Point position = new Point
{
X = Border,
Y = outPage.Size.Height - Border - fontSize * font.Ascent
};
// Move to position
textGenerator.MoveTo(position);
// Add given text string
textGenerator.ShowLine(textString);
}
// Paint the positioned text
gen.PaintText(text);
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, inDoc.getConformance(), null);
// Create embedded font in output document
Font font = outDoc.createSystemFont("Arial", "Italic", true);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (int i = 0; i < inDoc.getPages().size(); i ++)
{
Page inPage = inDoc.getPages().get(i);
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
if (i == 0)
{
// Add text on first page
addText(outDoc, outPage, textString, font, 15);
}
// Add page to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}private static void addText(Document outputDoc, Page outPage, String textString, Font font,
double fontSize) throws ErrorCodeException
{
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Create text object
Text text = outputDoc.createText();
// Create a text generator
TextGenerator textgenerator = new TextGenerator(text, font, fontSize, null);
// Calculate position
Point position = new Point(
Border,
outPage.getSize().height - Border - fontSize * font.getAscent()
);
// Move to position
textgenerator.moveTo(position);
// Add given text string
textgenerator.showLine(textString);
// Close text generator
textgenerator.close();
// Paint the positioned text
generator.paintText(text);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, PdfDocumentGetConformance(pInDoc), NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Create embedded font in output document
pFont = PdfDocumentCreateSystemFont(pOutDoc, _T("Arial"), _T("Italic"), TRUE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Failed to create font. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (iPage == 0)
{
//Add text on first page
if (addText(pOutDoc, pOutPage, szTextString, pFont, 15) == 1)
{
goto cleanup;
}
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
int addText(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TCHAR* szTextString, TPdfFont* pFont, double dFontSize)
{
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
TPdfText* pText = NULL;
TPdfTextGenerator* pTextGenerator = NULL;
pContent = PdfPageGetContent(pOutPage);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pContent, _T("Failed to get content of output file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create text object
pText = PdfDocumentCreateText(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pText, _T("Failed to create text object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create a text generator
pTextGenerator = PdfNewTextGenerator(pText, pFont, dFontSize, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pTextGenerator, _T("Failed to create a text generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Get output page size
TPdfSize size;
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageGetSize(pOutPage, &size), _T("Failed to read page size. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dFontAscent = PdfFontGetAscent(pFont);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dFontAscent, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate position
TPdfPoint position;
position.dX = dBorder;
position.dY = size.dHeight - dBorder - dFontSize * dFontAscent;
// Move to position
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorMoveTo(pTextGenerator, &position), _T("Failed to move to position. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add given text string
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorShowLine(pTextGenerator, szTextString), _T("Failed to add text string. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Close text generator
if (pTextGenerator != NULL)
PdfClose(pTextGenerator);
// Paint the positioned text
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintText(pGenerator, pText), _T("Failed to paint the positioned text. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pText != NULL)
PdfClose(pText);
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Layout text on PDF page
Create a new PDF document with one page. On this page, within a given rectangular area, add a text block with a full justification layout.
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.CreateNew, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
using (Font font = outDoc.CreateSystemFont("Arial", "Italic", true))
{
// Create page
using (Page outPage = outDoc.CreatePage(PageSize))
{
// Add text as justified text
LayoutText(outDoc, outPage, textPath, font, 20);
// Add page to document
outDoc.Pages.Add(outPage);
}
}private static void LayoutText(Document outputDoc, Page outPage, string textPath, Font font,
double fontSize)
{
// Create content generator
using (ContentGenerator gen = new ContentGenerator(outPage.Content, false))
{
// Create text object
using (Text text = outputDoc.CreateText())
{
// Create text generator
using (TextGenerator textGenerator = new TextGenerator(text, font, fontSize, null))
{
string[] lines = File.ReadAllLines(textPath, Encoding.Default);
// Calculate position
Point position = new Point
{
X = Border,
Y = outPage.Size.Height - Border
};
// Move to position
textGenerator.MoveTo(position);
// Loop throw all lines of the textinput
foreach (string line in lines)
{
// Split string in substrings
string[] substrings = line.Split(new char[] { ' ' }, StringSplitOptions.None);
string currentLine = null;
double maxWidth = (outPage.Size.Width - (Border * 2));
int wordcount = 0;
// Loop throw all words of input strings
foreach (string word in substrings)
{
string tempLine;
// Concatenate substrings to line
if (currentLine != null)
{
tempLine = currentLine + " " + word;
}
else
{
tempLine = word;
}
// Calculate the current width of line
double width = textGenerator.GetWidth(currentLine);
if ((textGenerator.GetWidth(tempLine) > maxWidth))
{
// Calculate the word spacing
textGenerator.WordSpacing = ((maxWidth - width) / (wordcount - 1));
// Paint on new line
textGenerator.ShowLine(currentLine);
textGenerator.WordSpacing = (0);
currentLine = word;
wordcount = 1;
}
else
{
currentLine = tempLine;
wordcount++;
}
}
textGenerator.WordSpacing = (0);
// Add given stamp string
textGenerator.ShowLine(currentLine);
}
// Paint the positioned text
gen.PaintText(text);
}
}
}
}// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Create embedded font in output document
Font font = outDoc.createSystemFont("Arial", "Italic", true);
// Create page
Page outPage = outDoc.createPage(PageSize);
// Add text to document
layoutText(outDoc, outPage, textPath, font, 20);
// Add page to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();private static void layoutText(Document outputDoc, Page outPage, String textPath, Font font,
double fontSize) throws ErrorCodeException
{
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Create text object
Text text = outputDoc.createText();
// Create a text generator
TextGenerator textGenerator = new TextGenerator(text, font, fontSize, null);
try
{
List<String> lines = Files.readAllLines(Paths.get(textPath), Charset.defaultCharset());
// Calculate position
Point position = new Point(
Border,
outPage.getSize().height - Border
);
// Move to position
textGenerator.moveTo(position);
// Loop throw all lines of the textinput
for (String line : lines)
{
// Split string in substrings
String[] substrings = line.split(" ");
String currentLine = null;
double maxWidth = (outPage.getSize().width - (Border * 2));
int wordCount = 0;
// Loop throw all words of input strings
for (String word : substrings)
{
String tempLine;
// Concatenate substrings to line
if (currentLine != null)
{
tempLine = currentLine + " " + word;
}
else
{
tempLine = word;
}
// Calculate the current width of line
double width = textGenerator.getWidth(currentLine);
if ((textGenerator.getWidth(tempLine) > maxWidth))
{
// Calculate the word spacing
textGenerator.setWordSpacing((maxWidth - width) / (double)(wordCount - 1));
// Paint on new line
textGenerator.showLine(currentLine);
textGenerator.setWordSpacing(0);
currentLine = word;
wordCount = 1;
}
else
{
currentLine = tempLine;
wordCount++;
}
}
textGenerator.setWordSpacing(0);
// Add given stamp string
textGenerator.showLine(currentLine);
}
// Paint the positioned text
generator.paintText(text);
// Close text generator
textGenerator.close();
}
catch (Exception e)
{
e.printStackTrace();
System.exit(-1);
}
}
finally
{
// Cleanup
if (generator != null)
generator.close();
}
}Stamp page number to PDF
Stamp the page number to the footer of each page of a PDF document.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, inDoc.Conformance, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
int pageNo = 1;
// Create embedded font in output document
using (Font font = outDoc.CreateSystemFont("Arial", string.Empty, true))
{
// Loop through all pages of input
foreach (Page inPage in inDoc.Pages)
{
// Copy page from input to output
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Stamp page number on current page of output document
AddPageNumber(outDoc, outPage, font, pageNo++);
// Add page to output document
outDoc.Pages.Add(outPage);
}
}
}
}private static void AddPageNumber(Document outDoc, Page outPage, Font font, int pageNumber)
{
// Create content generator
using (ContentGenerator generator = new ContentGenerator(outPage.Content, false))
// Create text object
using (Text text = outDoc.CreateText())
{
// Create a text generator with the given font, size and position
using (TextGenerator textgenerator = new TextGenerator(text, font, 8, null))
{
// Generate string to be stamped as page number
string stampText = string.Format("Page {0}", pageNumber);
// Calculate position for centering text at bottom of page
Point position = new Point
{
X = (outPage.Size.Width / 2) - (textgenerator.GetWidth(stampText) / 2),
Y = 10
};
// Position the text
textgenerator.MoveTo(position);
// Add page number
textgenerator.Show(stampText);
}
// Paint the positioned text
generator.PaintText(text);
}
}// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outDoc = Document.create(outStream, inDoc.getConformance(), null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Copy pages from input to output
int pageNo = 1;
// Create embedded font in output document
Font font = outDoc.createSystemFont("Arial", "", true);
// Loop through all pages of input
for (Page inPage : inDoc.getPages())
{
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Stamp page number on current page of output document
applyStamps(outDoc, outPage, font, pageNo++);
// Add page to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}private static void applyStamps(Document doc, Page page, Font font, int pageNo)
throws ErrorCodeException
{
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(page.getContent(), false);
// Create text object
Text text = doc.createText();
// Create a text generator with the given font, size and position
TextGenerator textgenerator = new TextGenerator(text, font, 8, null);
// Generate string to be stamped as page number
String stampText = String.format("Page %d", pageNo);
// Calculate position for centering text at bottom of page
Point position = new Point(
(page.getSize().width / 2) - (textgenerator.getWidth(stampText) / 2),
10
);
// Position the text
textgenerator.moveTo(position);
// Add page number
textgenerator.show(stampText);
// Close text generator
textgenerator.close();
// Paint the positioned text
generator.paintText(text);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, PdfDocumentGetConformance(pInDoc), NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Create embedded font in output document
pFont = PdfDocumentCreateSystemFont(pOutDoc, _T("Arial"), _T(""), TRUE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Failed to create font. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
int iPageNo = 1;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageGetSize(pOutPage, &size), _T("Failed to get size. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Stamp page number on current page of output document
if (addPageNumber(pOutDoc, pOutPage, pFont, iPageNo++) == 1)
{
goto cleanup;
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
int addPageNumber(TPdfDocument* pOutDoc, TPdfPage* pOutPage, TPdfFont* pFont, int nPageNumber)
{
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
TPdfText* pText = NULL;
TPdfTextGenerator* pTextGenerator = NULL;
pContent = PdfPageGetContent(pOutPage);
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create text object
pText = PdfDocumentCreateText(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pText, _T("Failed to create a text object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create a text generator with the given font, size and position
pTextGenerator = PdfNewTextGenerator(pText, pFont, 8, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pTextGenerator, _T("Failed to create a text generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Generate string to be stamped as page number
char szStampBuffer[50];
sprintf(szStampBuffer, _T("Page %d"), nPageNumber);
TCHAR* szStampText = szStampBuffer;
double dTextWidth = PdfTextGeneratorGetWidth(pTextGenerator, szStampText);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dTextWidth, _T("Failed to get text width. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate position
TPdfPoint position;
position.dX = (size.dWidth / 2) - (dTextWidth / 2);
position.dY = 10;
// Move to position
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorMoveTo(pTextGenerator, &position), _T("Failed to move to position. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add given text string
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorShowLine(pTextGenerator, szStampText), _T("Failed to add given text string. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Close text generator
if (pTextGenerator != NULL)
PdfClose(pTextGenerator);
// Paint the positioned text
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintText(pGenerator, pText), _T("Failed to paint the positioned text. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pText != NULL)
PdfClose(pText);
if (pContent != NULL)
PdfClose(pContent);
if (pGenerator != NULL)
PdfClose(pGenerator);
return iReturnValue;
}Document Setup
Add metadata to PDF
Set metadata such as author, title, and creator of a PDF document. Optionally use the metadata of another PDF document or the content of an XMP file.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, inDoc.Conformance, null))
{
// Copy output intent
using (ColorSpace inIntent = inDoc.OutputIntent)
{
if (inIntent != null)
{
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inIntent))
outDoc.OutputIntent = outputIntent;
}
}
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Copy pages from input document
foreach (Page inPage in inDoc.Pages)
{
Page outPage = outDoc.CopyPage(inPage, copyOptions);
outDoc.Pages.Add(outPage);
}
if (args.Length == 3)
{
Metadata mdata;
// Add metadata from a input file
using (FileStream metaStream = File.OpenRead(mdatafile))
{
if (mdatafile.EndsWith(".pdf"))
{
// Use the metadata of another PDF file
Document metaDoc = Document.Open(metaStream, "");
mdata = outDoc.CopyMetadata(metaDoc.Metadata);
}
else
{
// Use the content of an XMP metadata file
mdata = outDoc.CreateMetadata(metaStream);
}
outDoc.Metadata = mdata;
}
}
else
{
// Set some metadata properties
Metadata metadata = outDoc.Metadata;
metadata.Author = "Your Author";
metadata.Title = "Your Title";
metadata.Subject = "Your Subject";
metadata.Creator = "Your Creator";
metadata.Producer = "Your Producer";
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, inDoc.getConformance(), null);
// Copy output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (Page inPage : inDoc.getPages())
{
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add pages to output document
outDoc.getPages().add(outPage);
// Cleanup
outPage.close();
inPage.close();
}
if (args.length == 3)
{
Metadata mdata;
// Add metadata from a input file
FileStream metaStream = new FileStream(mdatafile, "r");
if (mdatafile.toLowerCase().endsWith(".pdf"))
{
// Use the metadata of another PDF file
Document metaDoc = Document.open(metaStream, null);
mdata = outDoc.copyMetadata(metaDoc.getMetadata());
}
else
{
// Use the content of an XMP metadata file
mdata = outDoc.createMetadata(metaStream);
}
outDoc.setMetadata(mdata);
}
else
{
// Set some metadata properties
Metadata metadata = outDoc.getMetadata();
metadata.setAuthor("Your Author");
metadata.setTitle("Your Title");
metadata.setSubject("Your Subject");
metadata.setCreator("Your Creator");
metadata.setProducer("Your Producer");
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, PdfDocumentGetConformance(pInDoc), NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
if (argc == 4)
{
// Add metadata from a input file
pMdataStream = _tfopen(szMdatafile, _T("rb"));
GOTO_CLEANUP_IF_NULL(pMdataStream, _T("Failed to open metadata file \"%s\".\n"), szMdatafile);
PdfCreateFILEStreamDescriptor(&mdataDescriptor, pMdataStream, 0);
// Get file extension
TCHAR* szExt = _tcsrchr(szMdatafile, '.');
_tcscpy(szExtension, szExt);
if (_tcscmp(szExtension, _T(".pdf")) == 0)
{
// Use the metadata of another PDF file
TPdfDocument* pMetaDoc = PdfDocumentOpen(&mdataDescriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetaDoc, _T("Failed to open metadata file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
TPdfMetadata* pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pMetaDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata. %s (ErrorCode: 0x%08x)."), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
}
else
{
// Use the content of an XMP metadata file
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, PdfDocumentCreateMetadata(pOutDoc, &mdataDescriptor)), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
}
}
else
{
// Set some metadata properties
TPdfMetadata* pMetadata = PdfDocumentGetMetadata(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to get metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfMetadataSetAuthor(pMetadata, _T("Your Author")), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfMetadataSetTitle(pMetadata, _T("Your Title")), _T("%s(ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfMetadataSetSubject(pMetadata, _T("Your Subject")), _T("%s(ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfMetadataSetCreator(pMetadata, _T("Your Creator")), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfMetadataSetProducer(pMetadata, _T("Your Producer")), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
}
Encrypt PDF
Encrypt a PDF document with a user password and an owner password. When opening the document, either of the passwords must be provided. If providing the user password, the document can be viewed and printed only. Providing the owner password grants full access to the document.
// Create encryption parameters
EncryptionParams encryptionParams = new EncryptionParams(UserPwd, OwnerPwd, Permission.Print |
Permission.DigitalPrint);
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document and set a user and owner password
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, encryptionParams))
{
// Set copy options
CopyOption copyOptions = CopyOption.CopyOutlines | CopyOption.CopyLinks |
CopyOption.CopyAnnotations | CopyOption.CopyFormFields | CopyOption.CopyLogicalStructure;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Loop through all pages of input
foreach (Page inPage in inDoc.Pages)
{
// Copy from input to output
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Add pages to first document
outDoc.Pages.Add(outPage);
}
}
}
// Create encryption parameters
EncryptionParams encryptionParams = new EncryptionParams(userPwd, ownerPwd, EnumSet.of(Permission.PRINT , Permission.DIGITAL_PRINT));
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document and set a user and owner password
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, encryptionParams);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_OUTLINES, CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS, CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Copy metadata
outDoc.setMetadata(outDoc.copyMetadata(inDoc.getMetadata()));
// Loop through all pages of input
for (Page inPage : inDoc.getPages())
{
// Copy from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add pages to first document
outDoc.getPages().add(outPage);
// Cleanup
if (outPage != null)
outPage.close();
if (inPage != null)
inPage.close();
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
TPdfEncryptionParams encryptParams;
encryptParams.szUserPassword = szUserPwd;
encryptParams.szOwnerPassword = szOwnerPwd;
encryptParams.iPermissions = ePermPrint | ePermDigitalPrint;
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, &encryptParams);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPage, _T("Failed to get page. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy page from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to outpuf document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
Flatten form fields in PDF
Flatten the visual appearance of form fields and discard all interactive elements.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options and flatten form fields
CopyOption copyOptions = CopyOption.CopyOutlines | CopyOption.CopyLinks |
CopyOption.FlattenFormFields | CopyOption.CopyLogicalStructure;
// Loop through all pages of input
for (int i = 0; i < inDoc.Pages.Count; i++)
{
// Copy page from input to output
using (Page inPage = inDoc.Pages[i])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Add pages to document
outDoc.Pages.Add(outPage);
}
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
outDoc.setMetadata(outDoc.copyMetadata(inDoc.getMetadata()));
// Set copy options and flatten annotations, form fields and signatures
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_OUTLINES, CopyOption.COPY_LINKS, CopyOption.FLATTEN_FORM_FIELDS, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (int i = 0; i < inDoc.getPages().size(); i++)
{
Page inPage = inDoc.getPages().get(i);
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add pages to document
outDoc.getPages().add(outPage);
// Cleanup
if (outPage != null)
outPage.close();
if (inPage != null)
inPage.close();
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options and flatten form fields
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyOutlines | ePdfFlattenFormFields | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
Merge multiple PDFs
Merge several PDF documents to one.
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Merge input documents
for (int i = 0; i < args.Length - 1; i++)
{
// Open input document
using (Stream inFs = new FileStream(inPath[i], FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inFs, null))
{
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.FlattenFormFields | CopyOption.CopyOutlines |
CopyOption.OptimizeResources | CopyOption.CopyLogicalStructure;
// Copy pages of input
foreach (Page inPage in inDoc.Pages)
{
// Copy page from input to output
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Add pages to document
outDoc.Pages.Add(outPage);
}
}
}
}
}
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Merge input document
for (int i = 0; i < args.length - 1; i++)
{
Document inDoc = null;
FileStream inStream = null;
try
{
// Open input document
inStream = new FileStream(inPath[i], "r");
inDoc = Document.open(inStream, null);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS,
CopyOption.COPY_ANNOTATIONS, CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES,
CopyOption.OPTIMIZE_RESOURCES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Copy pages of input
for (Page inPage : inDoc.getPages())
{
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add pages to output document
outDoc.getPages().add(outPage);
// Clean up
outPage.close();
inPage.close();
}
}
finally
{
// Close input document
if (inDoc != null)
inDoc.close();
if (inStream != null)
inStream.close();
}
}
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Merge input documents
for (int i = 1; i < argc - 1; i++)
{
// Open input document
pInStream = _tfopen(szInPath[i], _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath[i]);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath[i], szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Copy pages of input
for (int iPages = 0; iPages < PdfPageListGetCount(pInPageList); iPages++)
{
pInPage = PdfPageListGet(pInPageList, iPages);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
}
fclose(pInStream);
pInStream = NULL;
Overlay color of PDF
Overlay all pages of a PDF document with a configurable color.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set blendmode
BlendMode blendMode = BlendMode.Multiply;
// Create colorspace
using (ColorSpace colorSpace = outDoc.CreateDeviceColorSpace(colorType))
{
Paint paint = null;
switch (colorType)
{
// Create blending paint
case DeviceColorSpaceType.Gray:
paint = outDoc.CreateBlendingPaint(colorSpace, blendMode, colorAlpha, color[0]);
break;
case DeviceColorSpaceType.RGB:
paint = outDoc.CreateBlendingPaint(colorSpace, blendMode, colorAlpha, color[0],
color[1], color[2]);
break;
case DeviceColorSpaceType.CMYK:
paint = outDoc.CreateBlendingPaint(colorSpace, blendMode, colorAlpha, color[0],
color[1], color[2], color[3]);
break;
}
// Get output pages
PageList outPages = outDoc.Pages;
// Set copy options
CopyOption copyOptions = CopyOption.CopyAnnotations | CopyOption.CopyFormFields |
CopyOption.CopyOutlines | CopyOption.CopyLinks | CopyOption.CopyLogicalStructure;
// Loop through all pages
foreach (Page inPage in inDoc.Pages)
{
// Create a new page
Size size = inPage.Size;
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Create a content generator
using (ContentGenerator generator = new ContentGenerator(outPage.Content, false))
{
// Calculate Rectangle
Rectangle rect = new Rectangle
{
Left = 0,
Bottom = 0,
Right = size.Width,
Top = size.Height
};
// Make a rectangular path the same size as the page
using (PdfTools.Pdf.Path path = new PdfTools.Pdf.Path(InsideRule.EvenOdd))
{
using (PathGenerator pathGenerator = new PathGenerator(path))
{
Rectangle pathRect = new Rectangle
{
Left = 0,
Bottom = 0,
Right = size.Width,
Top = size.Height
};
pathGenerator.AddRectangle(pathRect);
}
// Paint the path with the transparent paint
generator.PaintPath(path, paint, null, false);
}
}
// Add pages to output document
outPages.Add(outPage);
}
}
}
}
try
{
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
try
{
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
outDoc.setMetadata(outDoc.copyMetadata(inDoc.getMetadata()));
// Set blendmode
BlendMode blendMode = BlendMode.MULTIPLY;
// Create colorspace
ColorSpace colorSpace = outDoc.createDeviceColorSpace(colorType);
// Create a transparent paint for the given color
Paint paint = null;
switch (colorType)
{
case GRAY:
paint = outDoc.createBlendingPaint(colorSpace, blendMode, colorAlpha, color[0]);
break;
case RGB:
paint = outDoc.createBlendingPaint(colorSpace, blendMode, colorAlpha, color[0], color[1], color[2]);
break;
case CMYK:
paint = outDoc.createBlendingPaint(colorSpace, blendMode, colorAlpha, color[0], color[1], color[2], color[3]);
break;
}
// Get output pages
PageList outPages = outDoc.getPages();
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages
for (Page inPage : inDoc.getPages())
{
// Create a new page
Size size = inPage.getSize();
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Create a content generator
ContentGenerator generator = new ContentGenerator(outPage.getContent(), false);
try
{
// Calculate rectangle
Rectangle rect = new Rectangle(
0,
0,
size.width,
size.height
);
// Make a rectangular path the same size as the page
Path path = new Path(InsideRule.EVEN_ODD);
PathGenerator pathGenerator = new PathGenerator(path);
pathGenerator.addRectangle(rect);
// Close path generator
pathGenerator.close();
// Paint the path with the transparent paint
generator.paintPath(path, paint, null, false);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
// Add pages to output document
outPages.add(outPage);
// Cleanup
outPage.close();
inPage.close();
}
}
finally
{
try
{
// Close output document
if (outDoc != null)
outDoc.close();
if (outStream != null)
outStream.close();
}
catch (ErrorCodeException e)
{
e.printStackTrace();
System.exit(-1);
}
}
}
finally
{
try
{
// Close input document
if (inDoc != null)
inDoc.close();
if (inStream != null)
inStream.close();
}
catch (ErrorCodeException e)
{
e.printStackTrace();
System.exit(-1);
}
}
}
catch (Exception e)
{
e.printStackTrace();
System.exit(-1);
}
Remove pages from PDF
Selectively remove pages from a PDF document.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
{
firstPage = Math.Max(Math.Min(inDoc.Pages.Count - 1, firstPage), 0);
lastPage = Math.Max(Math.Min(inDoc.Pages.Count - 1, lastPage), 0);
if (firstPage > lastPage)
{
Console.WriteLine("lastPage must be greater or equal to firstPage");
return;
}
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set copy options
CopyOption copyOptions = CopyOption.CopyOutlines | CopyOption.CopyLinks |
CopyOption.CopyAnnotations | CopyOption.CopyFormFields |
CopyOption.CopyLogicalStructure;
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Loop through all pages of input
for (int i = 0; i < inDoc.Pages.Count; i++)
{
if (i >= firstPage && i <= lastPage)
{
// Copy from input to output
using (Page inPage = inDoc.Pages[i])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
// Add pages to first document
outDoc.Pages.Add(outPage);
}
}
}
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
firstPage = Math.max(Math.min(inDoc.getPages().size() - 1, firstPage), 0);
lastPage = Math.max(Math.min(inDoc.getPages().size() - 1, lastPage), 0);
if (firstPage > lastPage)
{
System.out.println("lastPage must be greater or equal to firstPage");
return;
}
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_OUTLINES, CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS, CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
outDoc.setMetadata(outDoc.copyMetadata(inDoc.getMetadata()));
// Loop through all pages of input
for (int i = 0; i <= inDoc.getPages().size(); i++)
{
if (i >= firstPage && i <= lastPage)
{
Page inPage = inDoc.getPages().get(i);
// Copy from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
// Add pages to first document
outDoc.getPages().add(outPage);
// Cleanup
if (outPage != null)
outPage.close();
if (inPage != null)
inPage.close();
}
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
int nInPages = PdfPageListGetCount(pInPageList);
iFirstPage = MAX(MIN(nInPages - 1, iFirstPage), 0);
iLastPage = MAX(MIN(nInPages - 1, iLastPage), 0);
GOTO_CLEANUP_IF_FALSE(iFirstPage <= iLastPage, _T("Invalid page range given: %d - %d.\n"), iFirstPage, iLastPage);
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < nInPages; iPage++)
{
if (iPage >= iFirstPage && iPage <= iLastPage)
{
pInPage = PdfPageListGet(pInPageList, iPage);
// Copy from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy page from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add pages to first document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
}
Imposition
Create a booklet from PDF
Place up to two A4 pages in the right order on an A3 page, so that duplex printing and folding the A3 pages results in a booklet.
// Open input document
Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read);
Document inDoc = Document.Open(inStream, null);
// Create output document
Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite);
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
using (Font font = outDoc.CreateSystemFont("Arial", "Italic", true))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Copy pages
PageList inPages = inDoc.Pages;
PageList outPages = outDoc.Pages;
int numberOfSheets = (inPages.Count + 3) / 4;
for (int sheetNumber = 0; sheetNumber < numberOfSheets; ++sheetNumber)
{
// Add on front side
CreateBooklet(inPages, outDoc, outPages, 4 * numberOfSheets - 2 * sheetNumber - 1,
2 * sheetNumber, font);
// Add on back side
CreateBooklet(inPages, outDoc, outPages, 2 * sheetNumber + 1,
4 * numberOfSheets - 2 * sheetNumber - 2, font);
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
Font font = outDoc.createSystemFont("Arial", "Italic", true);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
outDoc.setMetadata(outDoc.copyMetadata(inDoc.getMetadata()));
// Copy pages
inPages = inDoc.getPages();
outPages = outDoc.getPages();
int numberOfSheets = (inPages.size() + 3) / 4;
for (int sheetNumber = 0; sheetNumber < numberOfSheets; ++sheetNumber)
{
// Add on front side
CreateBooklet(inPages, outDoc, outPages, 4 * numberOfSheets - 2 * sheetNumber - 1, 2 * sheetNumber, font);
// Add on back side
CreateBooklet(inPages, outDoc, outPages, 2 * sheetNumber + 1, 4 * numberOfSheets - 2 * sheetNumber - 2, font);
}private static void CreateBooklet(PageList inPages, Document outDoc, PageList outPages, int leftPageIndex, int rightPageIndex, Font font) throws ErrorCodeException
{
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Create page object
Page outPage = outDoc.createPage(PageSize);
// Create content generator
ContentGenerator generator = new ContentGenerator(outPage.getContent(), false);
try
{
BlendMode blendMode = BlendMode.NORMAL;
double alpha = 1.0;
TransparencyParams transparencyParams = new TransparencyParams(blendMode, alpha);
// Left page
if (leftPageIndex < inPages.size())
{
Page leftPage = inPages.get(leftPageIndex);
// Copy page from input to output
Group leftGroup = outDoc.copyPageAsGroup(leftPage, copyOptions);
// Paint group on the calculated rectangle
generator.paintGroup(leftGroup, ComputTargetRect(leftGroup.getSize(), true), transparencyParams);
// Add page number to page
StampPageNumber(outDoc, font, generator, leftPageIndex + 1, true);
}
// Right page
if (rightPageIndex < inPages.size())
{
Page rightPage = inPages.get(rightPageIndex);
// Copy page from input to output
Group rightGroup = outDoc.copyPageAsGroup(rightPage, copyOptions);
// Paint group on the calculated rectangle
generator.paintGroup(rightGroup, ComputTargetRect(rightGroup.getSize(), false), transparencyParams);
// Add page number to page
StampPageNumber(outDoc, font, generator, rightPageIndex + 1, false);
}
}
finally
{
if (generator != null)
generator.close();
}
// Add page to output document
outPages.add(outPage);
outPage.close();
}private static Rectangle ComputTargetRect(Size bbox, Boolean isLeftPage)
{
// Calculate factor for fitting page into rectangle
double scale = Math.min(CellWidth / bbox.width, CellHeight / bbox.height);
double groupWidth = bbox.width * scale;
double groupHeight = bbox.height * scale;
// Calculate x-value
double groupXPos;
if (isLeftPage)
groupXPos = CellLeft + (CellWidth - groupWidth) / 2;
else
groupXPos = CellRight + (CellWidth - groupWidth) / 2;
// Calculate y-value
double groupYPos = CellYPos + (CellHeight - groupHeight) / 2;
// Calculate rectangle
return new Rectangle(
groupXPos,
groupYPos,
groupXPos + groupWidth,
groupYPos + groupHeight
);
}private static void StampPageNumber(Document document, Font font, ContentGenerator generator, int pageNo, boolean isLeftPage) throws ErrorCodeException
{
// Create text object
Text text = document.createText();
// Create text generator
TextGenerator textgenerator = new TextGenerator(text, font, 8, null);
try
{
String stampText = String.format("Page %d", pageNo);
// Get width of stamp text
double width = textgenerator.getWidth(stampText);
double x;
// Calculate position
if (isLeftPage)
x = Border + 0.5 * CellWidth - width / 2;
else
x = 2 * Border + 1.5 * CellWidth - width / 2;
double y = Border;
Point point = new Point(
x,
y
);
// Move to position
textgenerator.moveTo(point);
// Add page number
textgenerator.show(stampText);
}
finally
{
if (textgenerator != null)
textgenerator.close();
}
// Paint the positioned text
generator.paintText(text);
}// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
pFont = PdfDocumentCreateSystemFont(pOutDoc, _T("Arial"), _T("Italic"), TRUE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pFont, _T("Failed to create font. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Copy pages
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
int nNumberOfSheets = (PdfPageListGetCount(pInPageList) + 3) / 4;
for (int nSheetNumber = 0; nSheetNumber < nNumberOfSheets; nSheetNumber++)
{
// Add on front side
CreateBooklet(pInPageList, pOutDoc, pOutPageList, 4 * nNumberOfSheets - 2 * nSheetNumber - 1, 2 * nSheetNumber, pFont);
// Add on back side
CreateBooklet(pInPageList, pOutDoc, pOutPageList, 2 * nSheetNumber + 1, 4 * nNumberOfSheets - 2 * nSheetNumber - 2, pFont);
}
int StampPageNumber(TPdfDocument* pDocument, TPdfFont* pFont, TPdfContentGenerator* pGenerator, int nPageNo, BOOL bIsLeftPage)
{
TPdfText* pText = NULL;
TPdfTextGenerator* pTextGenerator = NULL;
// Create text object
pText = PdfDocumentCreateText(pDocument);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pText, _T("Failed to create text object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create text generator
pTextGenerator = PdfNewTextGenerator(pText, pFont, 8, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pTextGenerator, _T("Failed to create text generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
char szStampBuffer[50];
sprintf(szStampBuffer, _T("Page %d"), nPageNo);
TCHAR* szStampText = szStampBuffer;
// Get width of stamp text
double dStampWidth = PdfTextGeneratorGetWidth(pTextGenerator, szStampText);
GOTO_CLEANUP_IF_ZERO_PRINT_ERROR(dStampWidth, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dStampX;
// Calculate position
if (bIsLeftPage)
{
dStampX = dBorder + 0.5 * dCellWidth - dStampWidth / 2;
}
else
{
dStampX = 2 * dBorder + 1.5 * dCellWidth - dStampWidth / 2;
}
double dStampY = dBorder;
TPdfPoint point;
point.dX = dStampX;
point.dY = dStampY;
// Move to position
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorMoveTo(pTextGenerator, &point), _T("Failed to move to position. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page number
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTextGeneratorShow(pTextGenerator, szStampText), _T("Failed to add page number. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pTextGenerator != NULL)
PdfClose(pTextGenerator);
// Paint the positioned text
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintText(pGenerator, pText), _T("Failed to paint the positioned text. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
if (pText != NULL)
PdfClose(pText);
return iReturnValue;
}void ComputeTargetRect(TPdfRectangle* pRectangle, const TPdfSize* pBBox, BOOL bIsLeftPage)
{
// Calculate factor for fitting page into rectangle
double dScale = MIN(dCellWidth / pBBox->dWidth, dCellHeight / pBBox->dHeight);
double dGroupWidth = pBBox->dWidth * dScale;
double dGroupHeight = pBBox->dHeight * dScale;
// Calculate x-value
double dGroupXPos;
if (bIsLeftPage)
dGroupXPos = dCellLeft + (dCellWidth - dGroupWidth) / 2;
else
dGroupXPos = dCellRight + (dCellWidth - dGroupWidth) / 2;
// Calculate y-value
double dGroupYPos = dCellYPos + (dCellHeight - dGroupHeight) / 2;
// Calculate rectangle
pRectangle->dLeft = dGroupXPos;
pRectangle->dBottom = dGroupYPos;
pRectangle->dRight = dGroupXPos + dGroupWidth;
pRectangle->dTop = dGroupYPos + dGroupHeight;
}int CreateBooklet(TPdfPageList* pInDocList, TPdfDocument* pOutDoc, TPdfPageList* pOutDocList, int nLeftPageIndex, int nRightPageIndex, TPdfFont* pFont)
{
TPdfPage* pOutPage = NULL;
TPdfContent* pContent = NULL;
TPdfContentGenerator* pGenerator = NULL;
TPdfRectangle targetRect;
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
// Create page object
pOutPage = PdfDocumentCreatePage(pOutDoc, &PageSize);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to create page object. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Create content generator
pContent = PdfPageGetContent(pOutPage);
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
int nPageCount = PdfPageListGetCount(pInDocList);
TPdfTransparencyParams trans;
trans.iBlendMode = ePdfBlendModeNormal;
trans.dConstAlpha = 1.0;
// Left page
if (nLeftPageIndex < nPageCount)
{
TPdfPage* pLeftPage = PdfPageListGet(pInDocList, nLeftPageIndex);
// Copy page from input to output
TPdfGroup* pLeftGroup = PdfDocumentCopyPageAsGroup(pOutDoc, pLeftPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pLeftGroup, _T("Failed to copy group from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
TPdfSize leftGroupSize;
PdfGroupGetSize(pLeftGroup, &leftGroupSize);
// Paint group on the calculated rectangle
ComputeTargetRect(&targetRect, &leftGroupSize, TRUE);
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintGroup(pGenerator, pLeftGroup, &targetRect, &trans), _T("Failed to paint group. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page number to page
if (StampPageNumber(pOutDoc, pFont, pGenerator, nLeftPageIndex + 1, TRUE) == 1)
{
goto cleanup;
}
}
// Right page
if (nRightPageIndex < nPageCount)
{
TPdfPage* pRightPage = PdfPageListGet(pInDocList, nRightPageIndex);
// Copy page from input to output
TPdfGroup* pRightGroup = PdfDocumentCopyPageAsGroup(pOutDoc, pRightPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pRightGroup, _T("Failed to copy group from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
TPdfSize rightGroupSize;
PdfGroupGetSize(pRightGroup, &rightGroupSize);
// Paint group on the calculated rectangle
ComputeTargetRect(&targetRect, &rightGroupSize, FALSE);
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintGroup(pGenerator, pRightGroup, &targetRect, &trans), _T("Failed to paint group. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Add page number to page
if (StampPageNumber(pOutDoc, pFont, pGenerator, nRightPageIndex + 1, FALSE) == 1)
{
goto cleanup;
}
}
if (pGenerator != NULL)
PdfClose(pGenerator);
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutDocList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
cleanup:
return iReturnValue;
}Fit pages to specific page format
Fit each page of a PDF document to a specific page format.
// Open input document
Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read);
Document inDoc = Document.Open(inStream, null);
// Create output document
Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite);
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Copy pages
foreach (Page inPage in inDoc.Pages)
{
Page outPage = null;
Size pageSize = inPage.Size;
bool rotate = AllowRotate &&
(pageSize.Height >= pageSize.Width) != (TargetSize.Height >= TargetSize.Width);
Size rotatedSize = pageSize;
if (rotate)
rotatedSize = new Size { Width = pageSize.Height, Height = pageSize.Width };
if (rotatedSize.Width == TargetSize.Width && rotatedSize.Height == TargetSize.Width)
{
// If size is correct, copy page only
outPage = outDoc.CopyPage(inPage, copyOptions);
if (rotate)
outPage.Rotate(Rotation.Clockwise);
}
else
{
// Create new page of correct size and fit existing page onto it
outPage = outDoc.CreatePage(TargetSize);
// Copy page as group
using (Group group = outDoc.CopyPageAsGroup(inPage, copyOptions))
{
// Calculate scaling and position of group
double scale = Math.Min(TargetSize.Width / rotatedSize.Width,
TargetSize.Height / rotatedSize.Height);
// Calculate position
Point position = new Point
{
X = (TargetSize.Width - pageSize.Width * scale) / 2,
Y = (TargetSize.Height - pageSize.Height * scale) / 2
};
// Create content generator
using (ContentGenerator generator = new ContentGenerator(outPage.Content, false))
// Calculate and apply transformation
using (Transformation transformation = new Transformation())
{
transformation.Translate(position.X, position.Y);
transformation.Scale(scale, scale);
Point point = new Point()
{
X = pageSize.Width / 2.0,
Y = pageSize.Height / 2.0
};
// Rotate input file
if (rotate)
transformation.RotateAround(90, point);
generator.Transform(transformation);
// Paint group
generator.PaintGroup(group, null, null);
}
}
}
// Add page to output document
outDoc.Pages.Add(outPage);
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
try
{
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Set copy options
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_LINKS, CopyOption.COPY_ANNOTATIONS,
CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Copy pages
for (Page inPage : inDoc.getPages())
{
Page outPage = null;
Size pageSize = inPage.getSize();
boolean rotate = AllowRotate && (pageSize.height >= pageSize.width) !=
(TargetSize.height >= TargetSize.width);
Size rotatedSize = pageSize;
if (rotate)
rotatedSize = new Size(pageSize.height, pageSize.width);
if (rotatedSize.width == TargetSize.width && rotatedSize.height == TargetSize.height)
{
// If size is correct, copy page only
outPage = outDoc.copyPage(inPage, copyOptions);
if (rotate)
outPage.rotate(Rotation.CLOCKWISE);
}
else
{
// Create new page of correct size and fit existing page onto it
outPage = outDoc.createPage(TargetSize);
// Copy page as group
Group group = outDoc.copyPageAsGroup(inPage, copyOptions);
// Calculate scaling and position of group
double scale = Math.min(TargetSize.width / rotatedSize.width,
TargetSize.height / rotatedSize.height);
// Calculate position
Point position = new Point(
(TargetSize.width - pageSize.width * scale) / 2,
(TargetSize.height - pageSize.height * scale) / 2
);
ContentGenerator generator = null;
try
{
// Create content generator
generator = new ContentGenerator(outPage.getContent(), false);
// Calculate and apply transformation
Transformation transformation = new Transformation();
transformation.translate(position.x, position.y);
transformation.scale(scale, scale);
Point point = new Point(
pageSize.width / 2.0,
pageSize.height / 2.0
);
// Rotate input file
if (rotate)
transformation.rotateAround(90, point);
generator.transform(transformation);
// Paint group
generator.paintGroup(group, null, null);
}
finally
{
// Close content generator
if (generator != null)
generator.close();
}
}
// Add page
outDoc.getPages().add(outPage);
outPage.close();
inPage.close();
}
}
finally
{
// Close output document
if (outDoc != null)
outDoc.close();
if (outStream != null)
outStream.close();
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get the pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Copy pages
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPage, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPage = NULL;
TPdfSize pageSize;
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageGetSize(pInPage, &pageSize), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
BOOL rotate = bAllowRotate && (pageSize.dHeight >= pageSize.dWidth) != (targetSize.dHeight >= targetSize.dWidth);
TPdfSize rotatedSize = pageSize;
if (rotate)
{
rotatedSize.dWidth = pageSize.dHeight;
rotatedSize.dHeight = pageSize.dHeight;
}
if (rotatedSize.dWidth == targetSize.dWidth && rotatedSize.dHeight == targetSize.dWidth)
{
// If size is correct, copy page only
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy pages from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (rotate)
{
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageRotate(pOutPage, ePdfRotateClockwise), _T("Failed to rotate page. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
}
}
else
{
// Create a new page of correct size and fit existing page onto it
pOutPage = PdfDocumentCreatePage(pOutDoc, &targetSize);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to create a new page. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Copy page as group
TPdfGroup* pGroup = NULL;
pGroup = PdfDocumentCopyPageAsGroup(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGroup, _T("Failed to copy page as group. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate scaling and position of group
double scale = MIN(targetSize.dWidth / rotatedSize.dWidth, targetSize.dHeight / rotatedSize.dHeight);
// Calculate position
TPdfPoint position;
position.dX = (targetSize.dWidth - pageSize.dWidth * scale) / 2;
position.dY = (targetSize.dHeight - pageSize.dHeight * scale) / 2;
TPdfContent* pContent = PdfPageGetContent(pOutPage);
TPdfContentGenerator* pGenerator = NULL;
// Create content generator
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create a content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate and apply transformation
TPdfTransformation* pTransformation = PdfNewTransformationIdentity();
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pTransformation, _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTransformationTranslate(pTransformation, position.dX, position.dY), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTransformationScale(pTransformation, scale, scale), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
TPdfPoint point;
point.dX = pageSize.dWidth / 2.0;
point.dY = pageSize.dHeight / 2.0;
// Rotate input file
if (rotate)
{
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfTransformationRotateAround(pTransformation, 90, &point), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
}
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorTransform(pGenerator, pTransformation), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Paint form
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintGroup(pGenerator, pGroup, NULL, NULL), _T("Failed to paint the group. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pTransformation != NULL)
PdfClose(pTransformation);
if (pGenerator != NULL)
PdfClose(pGenerator);
if (pGroup != NULL)
PdfClose(pGroup);
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
Place multiple pages on one page
Place four pages of a PDF document on a single page.
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, Conformance.Unknown, null))
using (PageList outPages = outDoc.Pages)
{
int pageCount = 0;
ContentGenerator generator = null;
Page outPage = null;
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
{
// Set output intent
using (ColorSpace inIntent = inDoc.OutputIntent)
{
if (inIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
}
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Copy pages
using (PageList inPages = inDoc.Pages)
{
// Copy pages
foreach (Page inPage in inPages)
{
if (pageCount == Nx * Ny)
{
// Add to output document
generator.Dispose();
outPages.Add(outPage);
outPage.Dispose();
outPage = null;
pageCount = 0;
}
if (outPage == null)
{
// Create a new output page
outPage = outDoc.CreatePage(PageSize);
generator = new ContentGenerator(outPage.Content, false);
}
// Get area where group has to be
int x = pageCount % Nx;
int y = Ny - (pageCount / Nx) - 1;
// Calculate cell size
Size cellSize = new Size
{
Width = (PageSize.Width - ((Nx + 1) * Border)) / Nx,
Height = (PageSize.Height - ((Ny + 1) * Border)) / Ny
};
// Calculate cell position
Point cellPosition = new Point
{
X = Border + x * (cellSize.Width + Border),
Y = Border + y * (cellSize.Height + Border)
};
// Set copy option
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines |
CopyOption.CopyLogicalStructure;
// Copy page group from input to output
using (Group group = outDoc.CopyPageAsGroup(inPage, copyOptions))
{
// Calculate group position
Size groupSize = group.Size;
double scale = Math.Min(cellSize.Width / groupSize.Width,
cellSize.Height / groupSize.Height);
// Calculate target size
Size targetSize = new Size
{
Width = groupSize.Width * scale,
Height = groupSize.Height * scale
};
// Calculate position
Point targetPos = new Point
{
X = cellPosition.X + ((cellSize.Width - targetSize.Width) / 2),
Y = cellPosition.Y + ((cellSize.Height - targetSize.Height) / 2)
};
// Calculate rectangle
Rectangle targetRect = new Rectangle
{
Left = targetPos.X,
Bottom = targetPos.Y,
Right = targetPos.X + targetSize.Width,
Top = targetPos.Y + targetSize.Height
};
// Add group to page
generator.PaintGroup(group, targetRect, null);
}
pageCount++;
}
}
}
// Add page
if (outPage != null)
{
generator.Dispose();
outPages.Add(outPage);
outPage.Dispose();
}
}
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
outPages = outDoc.getPages();
int pageCount = 0;
FileStream inStream = null;
Document inDoc = null;
ContentGenerator generator = null;
Page outPage = null;
try
{
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
Metadata metadata = outDoc.copyMetadata(inDoc.getMetadata());
outDoc.setMetadata(metadata);
// Copy pages
for (Page inPage : inDoc.getPages())
{
if (pageCount == Nx * Ny)
{
// Add to output document
generator.close();
outPages.add(outPage);
outPage.close();
outPage = null;
pageCount = 0;
}
if (outPage == null)
{
// Create a new output page
outPage = outDoc.createPage(PageSize);
generator = new ContentGenerator(outPage.getContent(), false);
}
// Get area where group has to be
int x = pageCount % Nx;
int y = Ny - (pageCount / Nx) - 1;
// Calculate cell size
Size cellSize = new Size(
(PageSize.width - ((Nx + 1) * Border)) / Nx,
(PageSize.height - ((Ny + 1) * Border)) / Ny
);
// Calculate cell position
Point cellPosition = new Point(
Border + x * (cellSize.width + Border),
Border + y * (cellSize.height + Border)
);
// Set copy option
EnumSet<CopyOption> copyoptions = EnumSet.of(CopyOption.COPY_LINKS,
CopyOption.COPY_ANNOTATIONS, CopyOption.COPY_FORM_FIELDS, CopyOption.COPY_OUTLINES,
CopyOption.COPY_LOGIGAL_STRUCTURE);
// Copy page group from input to output
Group group = outDoc.copyPageAsGroup(inPage, copyoptions);
// Calculate group position
Size groupSize = group.getSize();
double scale = Math.min(cellSize.width / groupSize.width,
cellSize.height / groupSize.height);
// Calculate target size
Size targetSize = new Size(
groupSize.width * scale,
groupSize.height * scale
);
// Calculate position
Point targetPos = new Point(
cellPosition.x + ((cellSize.width - targetSize.width) / 2),
cellPosition.y + ((cellSize.height - targetSize.height) / 2)
);
// Calculate rectangle
Rectangle targetRect = new Rectangle(
targetPos.x,
targetPos.y,
targetPos.x + targetSize.width,
targetPos.y + targetSize.height
);
// Add group to page
generator.paintGroup(group, targetRect, null);
inPage.close();
pageCount++;
}
}
finally
{
// Close input document
if (inDoc != null)
inDoc.close();
if (inStream != null)
inStream.close();
}
// Add page
if (outPage != null)
{
generator.close();
outPages.add(outPage);
outPage.close();
}
}
catch (Exception e)
{
e.printStackTrace();
System.exit(-1);
}
finally
{
try
{
// Close input document
if (outDoc != null)
outDoc.close();
if (outStream != null)
outStream.close();
}
catch (Exception e)
{
e.printStackTrace();
System.exit(-1);
}
}
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
int nPageCount = 0;
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Copy pages
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 0; iPage < PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage);
if (nPageCount == nNx * nNy)
{
// Add to output document
PdfClose(pGenerator);
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
PdfClose(pOutPage);
pOutPage = NULL;
nPageCount = 0;
}
if (pOutPage == NULL)
{
// Create a new output page
pOutPage = PdfDocumentCreatePage(pOutDoc, &PageSize);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to create a new output page. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
TPdfContent* pContent = PdfPageGetContent(pOutPage);
pGenerator = PdfNewContentGenerator(pContent, FALSE);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGenerator, _T("Failed to create content generator. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
}
// Get area where group has to be
int x = nPageCount % nNx;
int y = nNy - (nPageCount / nNx) - 1;
// Calculate cell size
TPdfSize cellSize;
cellSize.dWidth = (PageSize.dWidth - ((nNx + 1) * dBorder)) / nNx;
cellSize.dHeight = (PageSize.dHeight - ((nNy + 1) * dBorder)) / nNy;
// Calculate cell position
TPdfPoint cellPosition;
cellPosition.dX = dBorder + x * (cellSize.dWidth + dBorder);
cellPosition.dY = dBorder + y * (cellSize.dHeight + dBorder);
// Set copy options
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
// Copy page group from input to output
pGroup = PdfDocumentCopyPageAsGroup(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pGroup, _T("Failed to copy page group from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Calculate group position
TPdfSize groupSize;
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfGroupGetSize(pGroup, &groupSize), _T("%s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
double dScale = MIN(cellSize.dWidth / groupSize.dWidth, cellSize.dHeight / groupSize.dHeight);
// Calculate target size
TPdfSize targetSize;
targetSize.dWidth = groupSize.dWidth * dScale;
targetSize.dHeight = groupSize.dHeight * dScale;
// Calculate position
TPdfPoint targetPos;
targetPos.dX = cellPosition.dX + ((cellSize.dWidth - targetSize.dWidth) / 2);
targetPos.dY = cellPosition.dY + ((cellSize.dHeight - targetSize.dHeight) / 2);
// Calculate rectangle
TPdfRectangle targetRect;
targetRect.dLeft = targetPos.dX;
targetRect.dBottom = targetPos.dY;
targetRect.dRight = targetPos.dX + targetSize.dWidth;
targetRect.dTop = targetPos.dY + targetSize.dHeight;
TPdfTransparencyParams trans;
trans.iBlendMode = ePdfBlendModeNormal;
trans.dConstAlpha = 1.0;
// Add group to page
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfContentGeneratorPaintGroup(pGenerator, pGroup, &targetRect, &trans), _T("Failed to paint the group. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pGroup != NULL)
{
PdfClose(pGroup);
pGroup = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
nPageCount++;
}
// Add page
if (pOutPage != NULL)
{
PdfClose(pGenerator);
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
PdfClose(pOutPage);
}
Set page orientation
Rotate a specified page of a PDF document by 90 degrees.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outFs = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outFs, Conformance.Unknown, null))
{
// Set copy options
CopyOption copyOptions = CopyOption.CopyLinks | CopyOption.CopyAnnotations |
CopyOption.CopyFormFields | CopyOption.CopyOutlines | CopyOption.CopyLogicalStructure;
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Loop through all pages of input
for (int i = 1; i <= inDoc.Pages.Count; i++)
{
// Copy page from input to output
using (Page inPage = inDoc.Pages[i - 1])
using (Page outPage = outDoc.CopyPage(inPage, copyOptions))
{
if (pageNumbers.Contains(i))
{
// Rotate selected pages by 90°
outPage.Rotate(Rotation.Clockwise);
}
// Add pages to document
outDoc.Pages.Add(outPage);
}
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Create output document
outStream = new FileStream(outPath, "rw");
outStream.setLength(0);
outDoc = Document.create(outStream, Conformance.UNKNOWN, null);
// Set output intent
if (inDoc.getOutputIntent() != null)
outDoc.setOutputIntent(outDoc.copyColorSpace(inDoc.getOutputIntent()));
// Copy metadata
outDoc.copyMetadata(inDoc.getMetadata());
// Set copy options and flatten annotations, form fields and signatures
EnumSet<CopyOption> copyOptions = EnumSet.of(CopyOption.COPY_OUTLINES, CopyOption.COPY_LINKS, CopyOption.FLATTEN_ANNOTATIONS, CopyOption.FLATTEN_FORM_FIELDS, CopyOption.FLATTEN_SIGNATURE_APPEARANCES, CopyOption.COPY_LOGIGAL_STRUCTURE);
// Loop through all pages of input
for (int i = 1; i <= inDoc.getPages().size(); i++)
{
Page inPage = inDoc.getPages().get(i - 1);
// Copy page from input to output
Page outPage = outDoc.copyPage(inPage, copyOptions);
for (int pages : pageNumbers)
{
if (pages == i)
{
// Rotate selected pages by 90°
outPage.rotate(Rotation.CLOCKWISE);
}
}
// Add pages to document
outDoc.getPages().add(outPage);
// Cleanup
if (outPage != null)
outPage.close();
if (inPage != null)
inPage.close();
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Create output document
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
PdfCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
pOutDoc = PdfDocumentCreate(&outDescriptor, ePdfUnk, NULL);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutDoc, _T("Output file \"%s\" cannot be created. %s (ErrorCode: 0x%08x).\n"), szOutPath, szErrorBuff, PdfGetLastError());
// Set output intent
if (PdfDocumentGetOutputIntent(pInDoc) != NULL)
PdfDocumentSetOutputIntent(pOutDoc, PdfDocumentCopyColorSpace(pOutDoc, PdfDocumentGetOutputIntent(pInDoc)));
// Copy metadata
pMetadata = PdfDocumentCopyMetadata(pOutDoc, PdfDocumentGetMetadata(pInDoc));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to copy metadata from input file. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfDocumentSetMetadata(pOutDoc, pMetadata), _T("Failed to set metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Set copy options and flatten form fields
TPdfCopyOption copyOptions = ePdfCopyLinks | ePdfCopyAnnotations | ePdfCopyFormFields | ePdfCopyOutlines | ePdfCopyLogicalStructure;
pInPageList = PdfDocumentGetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList, _T("Failed to get pages of the input document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
pOutPageList = PdfDocumentGetPages(pOutDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPageList, _T("Failed to get pages of the output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
// Loop through all pages of input
for (int iPage = 1; iPage <= PdfPageListGetCount(pInPageList); iPage++)
{
pInPage = PdfPageListGet(pInPageList, iPage - 1);
// Copy page from input to output
pOutPage = PdfDocumentCopyPage(pOutDoc, pInPage, copyOptions);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pOutPage, _T("Failed to copy page from input to output. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
for (int i = 0; i < nPages; i++)
{
if (aPageNumbers[i] == iPage)
{
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageRotate(pOutPage, ePdfRotateClockwise), _T("Failed to rotate page. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
break;
}
}
// Add page to output document
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(PdfPageListAppend(pOutPageList, pOutPage), _T("Failed to add page to output document. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (pOutPage != NULL)
{
PdfClose(pOutPage);
pOutPage = NULL;
}
if (pInPage != NULL)
{
PdfClose(pInPage);
pInPage = NULL;
}
}
Information Extraction
List document information of PDF
List document information of a PDF document, e.g. author, title, creation date etc.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
{
// Get metadata of input PDF
Metadata metadata = inDoc.Metadata;
Console.WriteLine("Document information:");
// Get title
string title = metadata.Title;
if (title != null)
Console.WriteLine(" - Title: {0}", title);
// Get author
string author = metadata.Author;
if (author != null)
Console.WriteLine(" - Author: {0}", author);
// Get creator
string creator = metadata.Creator;
if (creator != null)
Console.WriteLine(" - Creator: {0}", creator);
// Get subject
string subject = metadata.Subject;
if (subject != null)
Console.WriteLine(" - Subject: {0}", subject);
// Get producer
string producer = metadata.Producer;
if (producer != null)
Console.WriteLine(" - Producer: {0}", producer);
// Get creation date
DateTimeOffset? creationDate = metadata.CreationDate2;
if (creationDate != null)
Console.WriteLine(" - Creation Date: {0}", creationDate);
// Get keywords
string keywords = metadata.Keywords;
if (keywords != null)
Console.WriteLine(" - Keywords: {0}", keywords);
// Get modification date
DateTimeOffset? modificationDate = metadata.ModificationDate2;
if (modificationDate != null)
Console.WriteLine(" - Modification Date: {0}", modificationDate);
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
// Get metadata of input PDF
Metadata metadata = inDoc.getMetadata();
System.out.format("Document information:\n");
// Get title
String title = metadata.getTitle();
if (title != null)
System.out.format(" - Title: %s\n", title);
// Get author
String author = metadata.getAuthor();
if (author != null)
System.out.format(" - Author: %s\n", author);
// Get creator
String creator = metadata.getCreator();
if (creator != null)
System.out.format(" - Creator: %s\n", creator);
// Get subject
String subject = metadata.getSubject();
if (subject != null)
System.out.format(" - Subject: %s\n", subject);
// Get producer
String producer = metadata.getProducer();
if (producer != null)
System.out.format(" - Producer: %s\n", producer);
// Get creation date
Calendar creationDate = metadata.getCreationDate();
if (creationDate != null)
{
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd' 'HH:mm:ssZ");
format.setTimeZone(creationDate.getTimeZone());
System.out.format(" - Creation Date: %s\n", format.format(creationDate.getTime()));
}
// Get keywords
String keywords = metadata.getKeywords();
if (keywords != null)
System.out.format(" - Keywords: %s\n", keywords);
// Get modification date
Calendar modificationDate = metadata.getModificationDate();
if (modificationDate != null)
{
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd' 'HH:mm:ssZ");
format.setTimeZone(modificationDate.getTimeZone());
System.out.format(" - Modification Date: %s\n", format.format(modificationDate.getTime()));
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Get metadata of input PDF
pMetadata = PdfDocumentGetMetadata(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to get metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
_tprintf(_T("Document information:\n"));
// Get title
size_t nTitle = PdfMetadataGetTitle(pMetadata, NULL, 0);
if (nTitle != 0)
{
TCHAR* szTitle = (TCHAR*)malloc(nTitle * sizeof(TCHAR));
if (szTitle != NULL)
{
PdfMetadataGetTitle(pMetadata, szTitle, nTitle);
_tprintf(_T(" - Title: %s\n"), szTitle);
free(szTitle);
}
}
// Get author
size_t nAuthor = PdfMetadataGetAuthor(pMetadata, NULL, 0);
if (nAuthor != 0)
{
TCHAR* szAuthor = (TCHAR*)malloc(nAuthor * sizeof(TCHAR));
if (szAuthor != NULL)
{
PdfMetadataGetAuthor(pMetadata, szAuthor, nAuthor);
_tprintf(_T(" - Author: %s\n"), szAuthor);
free(szAuthor);
}
}
// Get creator
size_t nCreator = PdfMetadataGetCreator(pMetadata, NULL, 0);
if (nCreator != 0)
{
TCHAR* szCreator = (TCHAR*)malloc(nCreator * sizeof(TCHAR));
if (szCreator != NULL)
{
PdfMetadataGetCreator(pMetadata, szCreator, nCreator);
_tprintf(_T(" - Creator: %s\n"), szCreator);
free(szCreator);
}
}
// Get producer
size_t nProducer = PdfMetadataGetProducer(pMetadata, NULL, 0);
if (nProducer != 0)
{
TCHAR* szProducer = (TCHAR*)malloc(nProducer * sizeof(TCHAR));
if (szProducer != NULL)
{
PdfMetadataGetProducer(pMetadata, szProducer, nProducer);
_tprintf(_T(" - Producer: %s\n"), szProducer);
free(szProducer);
}
}
// Get subject
size_t nSubject = PdfMetadataGetSubject(pMetadata, NULL, 0);
if (nSubject != 0)
{
TCHAR* szSubject = (TCHAR*)malloc(nSubject * sizeof(TCHAR));
if (szSubject != NULL)
{
PdfMetadataGetSubject(pMetadata, szSubject, nSubject);
_tprintf(_T(" - Subject: %s\n"), szSubject);
free(szSubject);
}
}
// Get keywords
size_t nKeywords = PdfMetadataGetKeywords(pMetadata, NULL, 0);
if (nKeywords != 0)
{
TCHAR* szKeywords = (TCHAR*)malloc(nKeywords * sizeof(TCHAR));
if (szKeywords != NULL)
{
PdfMetadataGetKeywords(pMetadata, szKeywords, nKeywords);
_tprintf(_T(" - Keywords: %s\n"), szKeywords);
free(szKeywords);
}
}
// Get creation date
if (PdfMetadataGetCreationDate(pMetadata, &date) == TRUE)
{
_tprintf(_T(" - Creation Date (UTC): %02d.%02d.%02d %02d:%02d:%02d\n"), date.iDay, date.iMonth, date.iYear + 1900, date.iHour, date.iMinute, date.iSecond);
}
// Get modification date
if (PdfMetadataGetModificationDate(pMetadata, &date) == TRUE)
{
_tprintf(_T(" - Modification Date (UTC): %02d.%02d.%02d %02d:%02d:%02d\n"), date.iDay, date.iMonth, date.iYear + 1900, date.iHour, date.iMinute, date.iSecond);
}
List Signatures in PDF
List all signature fields in a PDF document and their properties.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
{
SignatureFieldList signatureFields = inDoc.SignatureFields;
Console.WriteLine("Number of signature fields: {0}", signatureFields.Count);
foreach (SignatureField sig in signatureFields)
{
if (sig.IsSigned)
{
// List name
string name = sig.Name;
Console.WriteLine("- {0} fields, signed by: {1}",
sig.IsVisible ? "Visible" : "Invisible", name != null ? name : "(Unknown name)");
// List location
string location = sig.Location;
if (location != null)
Console.WriteLine(" - Location: {0}", location);
// List reason
string reason = sig.Reason;
if (reason != null)
Console.WriteLine(" - Reason: {0}", reason);
// List contact info
string contactInfo = sig.ContactInfo;
if (contactInfo != null)
Console.WriteLine(" - Contact info: {0}", contactInfo);
// List date
DateTime date = (DateTime)sig.Date;
if (date != null)
Console.WriteLine(" - Date: {0}", date);
}
else
Console.WriteLine("- {0} field, not signed", sig.IsVisible ? "Visible" : "Invisible");
}
}
// Open input document
inStream = new FileStream(inPath, "r");
inDoc = Document.open(inStream, null);
SignatureFieldList signatureFields = inDoc.getSignatureFields();
System.out.format("Number of signature fields: %d\n", signatureFields.size());
for (SignatureField sig : signatureFields)
{
if (sig.getIsSigned())
{
// List name
String name = sig.getName();
System.out.format("- %s field, signed by: %s\n", sig.getIsVisible() ? "Visible" : "Invisible", name != null ? name : "(Unknown name)");
// List location
String location = sig.getLocation();
if (location != null)
System.out.format(" - Location: %s\n", location);
// List reason
String reason = sig.getReason();
if (reason != null)
System.out.format(" - Reason: %s\n", reason);
// List contact info
String contactInfo = sig.getContactInfo();
if (contactInfo != null)
System.out.format(" - Contact info: %s\n", contactInfo);
// List date
Calendar date = sig.getDate();
if (date != null)
{
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd' 'HH:mm:ss");
format.setTimeZone(date.getTimeZone());
System.out.format(" - Date: %s\n", format.format(date.getTime()));
}
}
else
{
System.out.format("- %s field, not signed\n", sig.getIsVisible() ? "Visible" : "Invisible");
}
}
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PdfCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PdfDocumentOpen(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"), szInPath, szErrorBuff, PdfGetLastError());
// Get signatures of input PDF
pSignatureFields = PdfDocumentGetSignatureFields(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pSignatureFields, _T("Failed to get signatures of input PDF. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
_tprintf(_T("Number of signature fields: %d\n"), PdfSignatureFieldListGetCount(pSignatureFields));
for (int i = 0; i < PdfSignatureFieldListGetCount(pSignatureFields); i++)
{
pSig = PdfSignatureFieldListGet(pSignatureFields, i);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pSig, _T("Failed to get signature. %s (ErrorCode: 0x%08x).\n"), szErrorBuff, PdfGetLastError());
if (PdfSignatureFieldIsSigned(pSig))
{
// List name
size_t nName = PdfSignatureFieldGetName(pSig, NULL, 0);
_tprintf(_T("- %s fields"), PdfSignatureFieldIsVisible(pSig) ? _T("Visible") : _T("Invisible"));
if (nName != 0)
{
TCHAR* szName = (TCHAR*)malloc(nName * sizeof(TCHAR));
if (szName != NULL)
{
PdfSignatureFieldGetName(pSig, szName, nName);
_tprintf(_T(", signed by: %s"), szName);
free(szName);
}
}
_tprintf(_T("\n"));
// List location
size_t nLocation = PdfSignatureFieldGetLocation(pSig, NULL, 0);
if (nLocation != 0)
{
TCHAR* szLocation = (TCHAR*)malloc(nLocation * sizeof(TCHAR));
if (szLocation != NULL)
{
PdfSignatureFieldGetLocation(pSig, szLocation, nLocation);
_tprintf(_T(" - Location: %s\n"), szLocation);
free(szLocation);
}
}
// List reason
size_t nReason = PdfSignatureFieldGetReason(pSig, NULL, 0);
if (nReason != 0)
{
TCHAR* szReason = (TCHAR*)malloc(nReason * sizeof(TCHAR));
if (szReason != NULL)
{
PdfSignatureFieldGetReason(pSig, szReason, nReason);
_tprintf(_T(" - Reason: %s\n"), szReason);
free(szReason);
}
}
// List contact info
size_t nContactInfo = PdfSignatureFieldGetContactInfo(pSig, NULL, 0);
if (nContactInfo != 0)
{
TCHAR* szContactInfo = (TCHAR*)malloc(nContactInfo * sizeof(TCHAR));
if (szContactInfo != NULL)
{
PdfSignatureFieldGetContactInfo(pSig, szContactInfo, nContactInfo);
_tprintf(_T(" - Contact info: %s\n"), szContactInfo);
free(szContactInfo);
}
}
// List date
if (PdfSignatureFieldGetDate(pSig, &date) == TRUE)
{
_tprintf(_T(" - Date (UTC): %02d.%02d.%02d %02d:%02d:%02d\n"), date.iDay, date.iMonth, date.iYear + 1900, date.iHour, date.iMinute, date.iSecond);
}
}
else
{
_tprintf(_T("- %s field, not signed\n"), PdfSignatureFieldIsVisible(pSig) ? _T("Visible") : _T("Invisible"));
}
}
Content Modification
Remove White Text from PDF
Remove white text from all pages of a PDF.
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
// Create output document
using (Stream outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite))
using (Document outDoc = Document.Create(outStream, inDoc.Conformance, null))
{
// Set output intent
if (inDoc.OutputIntent != null)
using (ColorSpace outputIntent = outDoc.CopyColorSpace(inDoc.OutputIntent))
outDoc.OutputIntent = outputIntent;
// Copy metadata
using (Metadata metadata = outDoc.CopyMetadata(inDoc.Metadata))
outDoc.Metadata = metadata;
// Process each page
foreach (var inPage in inDoc.Pages)
{
using (inPage)
using (Page outPage = outDoc.CreatePage(inPage.Size))
{
// Use a content extractor and a content generator to copy page content
using (ContentExtractor extractor = new ContentExtractor(inPage.Content))
using (ContentGenerator generator = new ContentGenerator(outPage.Content, false))
{
// Ungroup those groups that safely can be ungrouped
extractor.Ungrouping = UngroupingSet.SafelyUngroupable;
// Iterate over all content elements
foreach (var inElement in extractor)
{
using (inElement)
// Copy the content element
using (var outElement = outDoc.CopyContentElement(inElement))
{
// Special treatment for text elements
if (outElement is TextElement outTextElement)
{
Text text = outTextElement.Text;
// Remove all those text fragments whose fill and stroke paint is white
for (int iFragment = text.Count - 1; iFragment >= 0; iFragment--)
{
var fragment = text[iFragment];
if ((fragment.Fill == null || IsWhite(fragment.Fill.Paint)) &&
(fragment.Stroke == null || IsWhite(fragment.Stroke.Paint)))
text.RemoveAt(iFragment);
}
if (text.Count == 0)
// Prevent appending an empty text element
continue;
}
// Append the copied element to the output page's content
generator.AppendContentElement(outElement);
}
}
}
// Add the new page to the output document's page list
outDoc.Pages.Add(outPage);
}
}
}private static bool IsWhite(Paint paint)
{
switch (paint.ColorSpace.Type)
{
case ColorSpaceType.DeviceGray:
case ColorSpaceType.CalGray:
case ColorSpaceType.DeviceRGB:
case ColorSpaceType.CalRGB:
return paint.Color.Min() == 1.0;
case ColorSpaceType.DeviceCMYK:
return paint.Color.Max() == 0.0;
case ColorSpaceType.Lab:
case ColorSpaceType.ICCBased:
case ColorSpaceType.Indexed:
case ColorSpaceType.Separation:
case ColorSpaceType.DeviceN:
case ColorSpaceType.NChannel:
return false;
}
return false;
}