Dokumentation & Codebeispiele

1// Create a converter object
2Converter converter = new Converter();
3
4// Add handler for conversion events
5class EventListener implements ConversionEventListener
6{
7    private EventSeverity eventsSeverity = EventSeverity.INFORMATION;
8
9    public EventSeverity getEventsSeverity() {
10        return eventsSeverity;
11    }
12
13    @Override
14    public void conversionEvent(ConversionEvent event) {
15        // Get the event's suggested severity
16        EventSeverity severity = event.getSeverity();
17
18        // Optionally, the suggested severity can be changed according to
19        // the requirements of your conversion process and, for example,
20        // the event's category (e.Category).
21
22        if (severity.ordinal() > eventsSeverity.ordinal())
23            eventsSeverity = severity;
24
25        // Report conversion event
26        System.out.format("- %c %s: %s (%s%s)%n", severity.toString().charAt(0), event.getCategory(), event.getMessage(), event.getContext(), event.getPageNo() > 0 ? " on page " + event.getPageNo() : "");
27    }
28}
29EventListener el = new EventListener();
30
31converter.addConversionEventListener(el);
32

1try (
2    // Create a session to the built-in cryptographic provider
3    Provider session = new Provider();
4
5    // Open certificate file
6    FileStream pfxStr = new FileStream(certificateFile, FileStream.Mode.READ_ONLY))
7{
8    // Create signature configuration from PFX (or P12) file
9    SignatureConfiguration signature = session.createSignatureFromCertificate(pfxStr, password);
10
11    // Embed validation information to enable the long-term validation (LTV) of the signature (default)
12    signature.setValidationInformation(com.pdftools.crypto.ValidationInformation.EMBED_IN_DOCUMENT);
13
14    // Create the Signer object
15    Signer signer = new Signer();
16
17    // (optional) create an event listener to listen for warning events that are raised and write them to console
18    signer.addWarningListener((e) -> { System.out.format("Warning - %s: %s: %s", e.getCategory(), e.getContext(), e.getMessage()); });
19
20    try (
21        // Open input document
22        FileStream inStr = new FileStream(inPath, FileStream.Mode.READ_ONLY);
23        Document inDoc = Document.open(inStr);
24
25        // Create a stream for the output file
26        FileStream outStr = new FileStream(outPath, FileStream.Mode.READ_WRITE_NEW);
27
28        // Sign the input document
29        Document outDoc = signer.sign(inDoc, signature, outStr))
30    {
31    }
32}
33        

1// Create the Optimizer object.
2Optimizer optimizer = new Optimizer();
3
4// Create the profile that defines the optimization parameters.
5// The Web profile is used to optimize documents for electronic document exchange.
6Web profile = new Web();
7
8// Optionally, the profile's parameters can be changed according to the
9// requirements of your optimization process.
10
11try (
12    // Open input document
13    FileStream inStr = new FileStream(inPath, FileStream.Mode.READ_ONLY);
14    Document inDoc = Document.open(inStr);
15
16    // Create output stream
17    FileStream outStr = new FileStream(outPath, FileStream.Mode.READ_WRITE_NEW);
18
19    // Optimize the document
20    Document outDoc = optimizer.optimizeDocument(inDoc, outStr, profile))
21{
22}
23

1// Open an encrypted input document
2// The password parameter is optional, and only required to open an encrypted PDF document
3FileStream inStr = new FileStream(inPath, FileStream.Mode.READ_ONLY);
4com.pdftools.pdf.Document inDoc = com.pdftools.pdf.Document.open(inStr, password)
5
6// Create output stream
7FileStream outStr = new FileStream(outPath, FileStream.Mode.READ_WRITE_NEW);
8
9// Create output options and specify encryption parameters
10// In this example, a 'User' is only granted permission to fill forms and print the document
11OutputOptions outOpt = new OutputOptions();
12
13// Set a user password that is required to open the document.
14// Note that this removes PDF/A conformance of input files (see warning category WarningCategory.PDF_A_REMOVED)
15outOpt.setEncryption(new Encryption(strUserPassword, strOwnerPassword, EnumSet.of(Permission.FILL_FORMS, Permission.PRINT)));
16
17// Optimize the input PDF document and save it to a file, applying the specified output encryption
18Document outDoc = new Optimizer().optimizeDocument(inDoc, outStr, profile, outOpt));
19
20// Create output options and remove encryption by setting it to null
21OutputOptions outOpt = new OutputOptions();
22outOpt.setEncryption(null);
23

1// Open the PDF document to validate
2try (FileStream inStr = new FileStream(inPath, FileStream.Mode.READ_ONLY);
3    com.pdftools.pdf.Document inDoc = com.pdftools.pdf.Document.open(inStr))
4{
5    // Create a conformance object that specifies the PDF/A standard and level against which the document is validated.
6    // Here we choose the PDF/A-2 Standard, with conformance Level B.
7    Conformance conformance = new Conformance(new Conformance.PdfAVersion(2, Conformance.PdfAVersion.Level.B));
8
9    // Create a Validator object and attach an Error event handler that simply writes the validation error messages to the console.
10    Validator validator = new Validator();
11    validator.addErrorListener(
12        (Validator.Error error) ->
13        System.out.format("- %s: %s (%s%s)%n", error.getCategory(), error.getMessage(), error.getContext(), error.getPageNo() > 0 ? String.format(" on page %d", error.getPageNo()) : "")
14    );
15
16    // Validate the PDF/A standard and level of the document against the defined Conformance level.
17    ValidationOptions options = new ValidationOptions();
18    options.setConformance(conformance);
19    ValidationResult result = validator.validate(inDoc, options);
20
21    // Write the result of the Validate method to the console.
22    System.out.println("Document conforms to " + result.getConformance().toString() + ": " + result.getIsConforming​());
23}
24