Digital Signatures
Error: At least one signature has problems | Standards-Based Signatures
Learn what to do when a completed PDF has the yellow warning message, "At least one signature has problems"
This authentication method is not supported NONE
Error: "This authentication method is not supported: NONE" when attempting to finish signing an envelope with Standards Based Signatures.
Error: "At least one signature is invalid" | Adobe Acrobat Reader DC
When opening documents downloaded from Docusign, Adobe Acrobat Reader DC displays the error "At least one signature is invalid". We can assure you that the signa...
Standards-Based Signatures - The Digital ID used to Certify/Ubiquitize/ Sign this document in Demo
Acrobat security message: The Digital ID used to Certify/Ubiquitize/ Sign this document has been issued for Adobe's internal test purposes only. Hence the identit...
What is a digital ID?
Digital IDs, also known as digital certificates, are electronic documents that use a digital signature to bind together a public key with an identity—this informa...
Standards-Based Signatures Combined PDF Digital Signature Missing
Read this article if you see an error message stating, "Digital Signature missing in Adobe Signature Panel."