How to digitally sign a pdf document
 

Adobe Acrobat has the ability to digitally sign a pdf document. How can we do that in Linux?

Signing a PDF inline in Linux? I don't know if that can be done. Signing any file is easy with gnupg (gpg --clearsign or gpg --detach-sign) though, but even though it would not be an Acrobat-style (inline) signing, it would be easy to verify.


Håkan

That is the simple and obvious solution but a windoze user of the document should be able to verify the signature while viewing it in adobe reader.