How to validate a PAdES (Long-term Signatures)

With e-Signature documents, we provide the option of adding PDF Advanced E-Signature (PAdES).

PAdES (long-term signatures) is a method used to extend the validation period of a digital signature. With our PAdES, we add a timestamp with a 10-year validity period, making it possible to clearly identify that a document has not been altered over an extended period. Additionally, adding a new timestamp before the expiration of the previous one, will further extend the validity of the document.

*Please reach out to our support team if you require an extension of validity

【How to add PAdES】

To add PAdES to a e-Signature document, check the "Add PDF Advanced E-Signature (PAdES)" box when setting up a document to be sent. PAdES will automatically be added when all signatures are completed.

*PAdES may require additional fees depending on your current plan

【How to validate a PAdES】

SignTime's PAdES is compatible with AATL (Adobe Approved Trust List), and and can be verified using Adobe Acrobat Reader.

*Signatures will show details only if "Add PDF Advanced E-Signature (PAdES)" is checked during the document creation processます。