As experts in high-trust solutions, we are often asked about the benefits of commercial off the shelf products versus seemingly more affordable Software Development Kits, Open Source libraries or third party pre-compiled libraries or binaries.
The ADSS Server Signing Service can create PDF digital signatures or all common ETSI PAdES formats (PAdES Part 2,3,4) and it can also create and apply visible signature appearances where requested. While other digital signature approaches have quite limited signature appearance functionality, the ADSS Server Signing Service includes a sophisticated and yet easy to use signature appearance designer. This enables administrators to create visible signatures that are optimised for their business purpose.
Within Europe a new digital signature format “PAdES” is gaining traction. PAdES stands for “PDF Advanced Electronic Signatures” and is a set of standards published by ETSI (TS 102 778 parts 1 to 5) to support European requirements for electronic signatures. The purpose is specifically for creation of long-term signatures that are verifiable for years or even decades.