GroupDocs.Signature Product Family
GroupDocs.Signature for .NET
Native .NET API to add, search and verify most popular digital signature types to Microsoft Office, PDF, images and various other formats in .NET applications.
These are links to some useful resources:
GroupDocs.Signature for Java
Empower Java applications with eSignature capabilities to digitally sign a wide range of documents & images on any operating system with JDK installed.
These are links to some useful resources:
