Slightly OT - i need the proper wording for a signed document

Stefan Claas stefan.claas at
Sat Nov 3 17:21:56 CET 2018

On Sat, 3 Nov 2018 10:43:49 +0100, Stefan Claas wrote:
> On Fri, 2 Nov 2018 15:42:40 +0100, Stefan Claas wrote:

> > I strongly assume that it is also possible that someone
> > else can sign my .pdf too with a qualified signature and
> > this will also not invalidate my qualified signature, unless
> > of course someone would *edit* my document.  
> Just did a test with an older .pdf, which was signed with my
> non-qualified D-Trust certificate and time stamped with
> freetsa. Now i signed it again with my qualified D-Trust certificate
> and time stamped again.
> Works perfect! :-)

Small update: A Usenet friend just signed my .pdf too, with his
qualified D-Trust certificate and it works like expected. :-)


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