Verification of Signatures

Hello, 

This all depends on what type of signature was applied to the document, whether that was a digital signature or an Acrobat signature, etc.

When you receive a signed document, you may want to validate its signature to verify the signer and the signed content. Depending on how you’ve configured your application, validation may occur automatically. Signature validity is determined by checking the authenticity of the signature’s digital ID certificate status and document integrity.

To verify authenticity, the validator checks if the signer's certificate or its parent certificates are trusted. The validity of the signing certificate is also checked based on the user's Acrobat or Acrobat Reader settings.

To verify document integrity, the validator checks if the signed content was altered after signing. If changes were made, the verification ensures that the signer allowed the changes.

For more information on Digital Signature validation: https://adobe.ly/4hYyMFN;

And related to Acrobat Sign signature or e-sgin: https://adobe.ly/4kbu3Cf;

Let us know if you have further questions.