XFA stands for XML Forms Architecture, and is part of a family of proprietary XML specifications that were developed by JetForm to enhance the processing of web based forms, however starting at PDF Specfication 1.5 it was possible to be used with XFA, but XML Forms Architecture was not standardized when the PDF Format became an ISO standard.

XFA

Announcing JPedal XFA

It will come as no surprise to readers of our blog that we have been working on XFA support. We have had test code...
Mark Stephens
49 sec read