Signature Validation for Electronic Documents

• A signature is recognized as being valid if the certificate associated with the signer is valid (not revoked) at the time of signing and if the certificate was issued by a recognized certificate authority.
• A signature is invalid if it does not meet the conditions previously mentioned, if validation proof was not included at the time of signing or if the signer’s certificate has expired.

The complete validation of the signature is just as important as the act of signing the document. Before publishing, accepting or archiving a document, validating the identity of your documents’ signers and ensuring that they are duly authorized to sign is essential. It is also important to verify if your document will be able to be read for decades to come and if it was altered after it was signed.

Only PDF files can be uploaded and validate.

• PDF/A is based on ISO standard 19005 concerning the long-term archiving of PDF documents and ensures the longevity of information; fonts, images, graphic elements and document formatting are preserved over time, regardless of the application or platform used to create the document. The tool indicates if the document claims to be PDF/A-compliant. For a detailed analysis of PDF/A compliance, please use ConsignO Desktop or Adobe Acrobat.
• PDF/A compliance is in no way linked to the integrity or validity of a document’s digital signatures.

LTV compliance, in the context of digital signatures, ensures that the signature will remain valid over the long term, requiring signature validation proof to be integrated into the document. As a result, the signature can still be validated, even after the signing certificate has expired.

The verifio.com website offers a simplified view. For more details, use the option “Signature validation” in ConsignO Desktop or the signature panel in Adobe Acrobat.