How Acrobat handles Digitally Signed PDF Files

1. the Adobe Acrobat Help file
2. the Adobe Acrobat Reader Help file (only Version 7.0)
3. the PentaPDF-PRO Help file

Changing Signature Appearance

Checking Information on Digital Certificates

Determining the trust level of a certificate

List of Trusted Identities

Managing Digital ID Certificates

Setting Digital Signature Preferences

Using the Signatures tab

Validating Signatures

Digital Signatures

Creating New Digitally Signed PDF's

Adding Digital Signatures to Existing PDF's

What is a Digital Certificate?

Definition of Root Certificate

X.509 Certificates

Where to get a Digital Certificate

Requesting Digital Certificates through Internet Explorer

How to Export a PFX File from Internet Explorer

Requesting Digital Certificates through Firefox

How to Import an Internet Explorer PFX File to Firefox

How to Export a PFX File from Firefox