Hello,    I'm trying to programmatically fill existing signed xfa forms with information from a database. I'm using a library called pdfbox. It works great, except that the <form> tag of the xfa form needs a checksum if modified. I cannot find how to calculate that checksum anywhere. Does Adobe have...

Oops, I didn't mean to send this, and i can't delete it, sorry.

Thanks Kosta,     Yes, I checked those sites but there's no useful info :(. I can write xfa data with pdfbox, I'm actually using it because iText didn't work well for some forms. I can manually write the xfa data and it works perfectly, but the algorithm for calculating the checksum for the <form> t...

Sorry, I'll try to clarify. I'm saving the pdf using Apache's PDFBox. XFA forms are saved inside the pdf and have an XML structure which consists mainly of a template section, a data section, and a form section which is the template and the data merged.. I can save the data part and Adobe reader wil...

Hello,    This question has been asked before, but I cannot find an answer anywhere.    For XFA forms, adobe reader adds a checksum in the <form> tag when saving. I'm trying to automatically fill an xfa form, and I need to calculate that checksum. Is there any documentation about how to perform that...