Configuring Adobe Acrobat Reader to use Signature Appliance

  1. Within Adobe Acrobat Reader, navigate to Edit - Preferences - Signatures - Verification.
  2. Click on More... button
  3. Under the Windows Integration heading, insure both options are selected to trust ALL root certificates in the Windows Certificate Store:
    1. Validating Signatures
    2. Validating Certified Documents
    3. User-added image
  4. Click OK