PDF knowledge

Find articles that provide you with practical insight into the world of PDFs. Learn all the ins and outs of PDFs, from the fundamentals to the best practices.

Tech corner

Is JBIG2 soon banned?

JBIG2 is a compression algorithm for bitonal images and has been developed to replace the widely used CCITT G4 algorithm because it can reach better compression ratios. However, the algorithm has received a bad reputatio ...

Tech corner

The problem with embedded fonts in PDF mass printing applications

PDF is more and more finding its way into mass printing applications. However, PDF spool files often ask too much from a print engine resulting in aborts or, even worse, incomplete prints which may not be noticed. What i ...

Tech corner

Replacing rich black by true black in PDF documents

When it comes to printing then all colors in a PDF document are transformed to the native color space of the printing device. If, e.g. a text uses a black RGB color then it is transformed to an equivalent CMYK value whic ...

Tech corner

Inline images and Type 3 fonts

I often hear that the inline image construct is a major flaw in the design of the PDF page description language. Inline images are an often used feature in Type 3 fonts. However, the stomach pain of some experts even cau ...

Tech corner

How to render the text of a PDF document if the font is not embedded?

Every developer of a PDF viewer, a PDF printer and a PDF to Image Converter tool comes across the requirement to render non embedded fonts and is facing quite a challenging task. Not only developers but also users of the ...

Tech corner

Using blockchains as an alternative to PKIs for digital signatures

The traditional technical environment for a digital signature is the public key infrastructure (PKI). Digital signatures are also used to implement electronic money such as Bitcoin. However, Bitcoin uses a new technology ...

Tech corner

Using native applications in a PDF document conversion service

Automated conversion of Office documents into PDFs has become a popular service. When designing the architecture of such a service, the question arises as to whether the native application or a specially developed softwa ...

How to use

Maintenance and support

We offer a range of services in addition to our mature products. We can fall back on broad experience in the field of technology and with regard to business administration issues. Over the years we have created customize ...

How to use

License Management

Read more about how to manage, activate and troubleshoot your Pdftools license.

Tech corner

The Quality Gate in the digital age – safeguards the quality of your documents

Safeguarding document quality is vital in any business, especially when it comes to sharing documents or digitally archiving them, and specifically if the documents might one day be needed for an audit or a legal issue. ...

Tech corner

Optimization – reduce your files to the max

There is no question – storage space is now cheaper and more available to everyone. Neither hardware nor storage costs seem offputting at first. But the volume of data being handled is already massive – and increasing ev ...

Tech corner

SAP Folders Management extended by new functionality of 3-Heights® Document Converter

High-quality PDF formats are of central importance in digital document management and especially in digital file management. The 3-Heights® Document Converter offers document conversion into high-quality PDF/A formats fr ...

Your head start into the world of PDF/Awesomeness

Stay up to date with our monthly newsletter! You‘ll be the first to know about PDF and PDF/A updates, as well as improvements for our tools.