Does UniPDF support bitonal encoding such as CCITT and JBIG2?

UniPDF supports CCITT and JBIG2 decoding and encoding.   Thus we can fully extract images which use these algorithms as well as take advantage of them for compression. Those decoders and encoders are part of UniPDF and were specifically developed by us for the PDF library and have been optimized for PDF images.

While JBIG2 is a much more complex format than CCITT, when it comes to the optimization of bitonal black and white images, JBIG2 is recognized as the best out there. Read more about this standard on our detailed blog post here.