Barbara,

Ing. Barbara Zussner wrote:
> 
> I hope you can help me. I'm working on a project with electronic signature
> and when I verify my signed document I get the error: 4000 - Unrecognized
> PDF-Content: The document contains PDF content or custom content not
> supported by the current version of Acrobat.
> 
> I don't know what the problem can be, because the signature I get from my
> smartcard is correct.
> I hope you can help me!
> 
> Here is my unsigned version: http://www.lfbline.com/pdf/test.pdf
> Here my signed version: http://www.lfbline.com/pdf/test_signed.pdf
> 

Your signed document contains the mapping /Encoding to /WinAnsiEncoding in
the /DR dictionary inside the /Acroform dictionary. Former versions used to
have the quirk of adding this entry. It actually isn't wrong per se, cf.
threads like

http://www.nabble.com/Re%3A-Unrecognized-PDF-content%3A-The-document%09contains-PDF-content-or-custom-content-not-supported-by-the%09current-version-of-Adobe-Reader.-p20375513.html

You actually have been given this information before in this mailing list...

Regards, Michael.

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