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.

PDF documents have been common use within business for many years. Protecting PDFs against change is fast becoming a hot topic. Digitally signing PDFs with a certifying signature protects the content and also shows who signed or approved the document. This article explains how you can easily digitally sign PDFs, it covers what is needed to electronically sign PDF documents and the different types of PDF signatures.