I understand that with xfa docs we can sign the whole pdf or the xml datasets
(in whole or in parts).
We are trying to sign the whole pdf using the same method as static pdf. The
result is a signature extractable by IText, but Adobe Reader doesn't even see
there is a signature in there.
When we sign with acrobat it hads a form element in the xdp along with a
checksum value.
The question is:
- how is this checksum calculated?
- is this checksum even used by reader to discover the signatures?
Mathieu
Notarius Inc.
700-1080 Côte du Beaver Hall
Montréal, Québec, H2Z 1S8
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