Hello Stefan. Am Freitag, den 02.11.2018, 12:53 +0100 schrieb Stefan Claas: > > Hi Wiktor, > > thanks a lot! Now this is awesome... i just timestamped my already > signed .pdf with Adobe Reader DC and this does not invalidate my > qualified signature, when saving the document again! :-) I must admit > i did not know this.
You mean, you "tampered" with the file and the signature is still valid? Are you sure? Then Adome does sometging really bad, IMHO. Such a signature should ensure that the file is unmodified completely. otherwise somebody can modify it in a way that could be used as a backdoor to the signature, at least in theory. Regards, Dirk -- Dirk Gottschalk Paulusstrasse 6-8 52064 Aachen, Germany GPG: DDCB AF8E 0132 AA54 20AB B864 4081 0B18 1ED8 E838 Keybase.io: https://keybase.io/dgottschalk GitHub: https://github.com/Dirk1980ac
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