The work that was planned for iText 5.4.4, but postponed due to a customer priority, has now been done: we have completed support for PDF/A, more specifically PDF/A-2 and PDF/A-3. XAdES-EPES support has also been added.
Apart from the work that was scheduled, we've also fixed some iText
5.4.4-related issues that were reported to us by our customer; the new
functionality to preserve the structure tree as well as the interactive
form fields should now be ready for use. At the same time, some other
PDF/UA-related issues were fixed, even in iText RUPS.
Other improvements include the parsing functionality and an extra digital signatures feature that allows you to add information about the application that signed the PDF to the signature dictionary. As always, we've also fixed some bugs, for instance in XML Worker where we still experienced some problems with images in cells and with the order in which CSS styles are processed.