Insert trusted timestamp to PDF

[Hegedüs, Ervin]

Hello,

On Thu, Dec 08, 2011 at 04:28:01PM +1100, Alec Taylor wrote:
> Just digitally sign the document using python-gnupg
> 
> /problem-solved!

using gnupg to sign a document != add a timestamp to a pdf.

May be this doc helps to clear what's the different, and what I want:

http://learn.adobe.com/wiki/download/attachments/52658564/digital_signatures_in_acrobat_9x.pdf?version=1



thanks:


a.