I have now confirmed the behaviour. I only get up to 5 signatures: 1
certification and 4 approval signatures. I can sign the same field 5 times,
the resulting PDF will never
have more than 5 signatures.
I am using ITextSharp 5.1.1 to add the signatures. Might this be a bug in the
ITextSharp lib?
I also expected to see at least more revisions or invalidated signatures, but
none of that is happening.
Regards
________________________________
From: Leonard Rosenthol <[email protected]>
To: Rouan van Dalen <[email protected]>
Sent: Monday, 24 October 2011, 16:37
Subject: Re: [iText-questions] Resigning digital signatures in PDF not
invalidating other signatures
If you are signing again, then it's just ADDING to the PDF – it's not REPLACING
the existing signature, which is why nothing is broken.
Look in the Signature panel in Acrobat/Reader, and you will see that there are
now 6 signatures ( 1 Cert + 4 Fields + 1 "resign") instead of 5 as I think you
are expecting.
Leonard
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