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.
- Open PDF file using Adobe Acrobat Reader
- Open "Signatures" panel to display information about each digital signature
*Signatures will show details only if "Add PDF Advanced E-Signature (PAdES)" is checked during the document creation processます。