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I am using a personal certificate, issuded from the DFN to sign my mails and documents.
On a freshly installed Mac, using this certicate results in the following error messsage (sorry, sionce I use the German version, I can only provide the german error) : "Beim Unterschreiben ist ein Fehler aufgetreten: Die für das Unterschreiben ausgefüllte Referenz ist ungültig" Freely translated this means sometihng like "An error has occurred while signing: The reference filled in for the signature is invalid"
I use the same certificate on other Macs with Arcrobat Reader to sign documents and on the affected computer I use this certificate to sign Emails. Anything works with this exception (signing pdf doctuments on this mac with Adobe Reader DC)
Any help would be very appreciated
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