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
Last month we had an exciting announcement: we have released our new browser-based PDF Form viewing solution, FormVu. What is FormVu? FormVu is a... With the removal of Acrobat Reader support in Chrome and other browsers, we have seen a big increase in the number of clients asking... This simple article explains how to send XFA form data as an email in two possible ways. Why does the client need to send data as... At IDR Solutions I spend alot of time working on XFA for our Java PDF Library and PDF to HTML5 Converter and during this... At IDR Solutions we spend alot of time working with XFA in our Java PDF Library. I have spent a lot of time working... 
