Hi,
the german certificat organization D-Trust has issued a new Chipcard in December 2014 to change to latest security standards and technology.
Now, it is not anymore possible to sign documents with Adobe Acrobat Professional 11.0.10. using the "qualified signatur", according to German and EU law.
The "advanced signature" can still be used but is not valid according to the regulations in Germany and EU.
The "qualified signature" of the old Chipcard can also still be used, but is meanwhile marked expired.
Signing .pdf documents with other software, like DigiSeal Office, is possible with the new Chipcard and the new certificates. So it is very much likely it is an issue within Adobe Acrobat.
Error Message: "The reference used is not valid" (translated from the German message).
Does anyone have an idea what the root cause for this could be?!
Karl-Heinz
