My users are wanting a way to sign PDF documents, and have them verified for internal and external receipients. We are currently using Acrobat 9 Standard. I know you can create signatures and 'self-sign' them, but those are only trusted if the receipient manually adds them to their 'Trusted' people.
From my reading, it looks like we need to purchase a third party code signing certificate, such as the following: http://www.verisign.com/code-signing/
My question is, what do we need to do to make that certificate availbable to my users to use for their signatures? I'm having a hard time finding documentation on this part.
Here's a good starting point for understanding how CDS and AATL work with Acrobat and Reader: http://learn.adobe.com/wiki/display/security/Digital+Signatures+101
Another option you should look into is Adobe EchoSign: http://blogs.adobe.com/acrobat/tag/echosign