What do you try? In Adobe Reader you can use a digital signature to sign a document.With Adobe Reader you can't change internals of a signature.
Thanks for your reply dear...
Infact I want to sign document myself not using adobe reader. If you have
any idea of it please share with me...
thanks a lot
What kind of software?
Dear Bernd Alheit
Infact I am working on "PDF File Generator" using .net framework. If you
have any idea of signature dictionary and PDF language then please help me
out in this regard..