Re: how to sign a pdf document with sea horse?

["J.A.Aylward" <J A Aylward exeter ac uk>]

Many thanks Adam,
I thought I'd tried editing the pdf after signing it to test that out, 
but obviously failed!

but I can see that works now.
thanks again for the explanation.
I'll try playing with  gpg --verify now too.
It was also kind of you to respond so quickly.

all the best

Jamie Aylward

Adam Schreiber wrote:
> On Sat, Oct 24, 2009 at 12:33 PM, J.A.Aylward <J A Aylward exeter ac uk> wrote:
>   
> > Sorry if this is a dumb question, but I've been trawling the web and the
> > seahorse archives for an answer and can't find one.
> >
> > In an openoffice document you can sign a document with a digital signature,
> > and it's all contained within the document.
> >     
>
> That's a signature performed with an X.509/PKCS #11 certificate
> provided from your mozilla store and placed in the .odf, etc.
> according to the specification of that file.
>
>   
> > Right clicking on a document in Gnome, produces a menu-item "Sign" - which
> > duly produces a .sig file. with seahorse
> >
> > ..so what do I do with it? ;-)
> >     
>
> This is a detached signature generated from a GPG/PGP key.  Double
> click it and you should get a notification or dialog indicating the
> status of the signed file.  It should be distributed with the signed
> file.  You can also do gpg --verify foo.sig or seahorse-tool --verify
> foo.sig.
>
>   
> > Have I just got the wrong impression, and the signing of a file is for
> > signing other certificates to make them "trusted"
> > or should I be somehow embedding the signature file within the pdf?
> >     
>
> Unless evince or OO.o understand how to sign a pdf themselves, it
> won't be included in the file.
>
> Cheers,
>
> Adam
>   

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