Signing Adobe PDF

Hi, I am trying to "sign" a PDF file. I was able to this AM, but I cannot all of a sudden. It wont let me write or anything. Please help I need this for work!


Does the document you're trying to sign have any security restrictions?
You might want to contact the Topaz folks since applying a digital signature with their pad relies on a plug-in they supply. You can get the latest one here: