Note This page contains release notes for GroupDocs.Signature for .NET 19.6 Major Features There are about 15 new features, improvements and bug fixes in this regular release. Most features are related to support new image file format for most service methods, implementation of serialization and encryption of custom data objects into Metadata signatures for Image documents, with ability to extract them back and specify custom serialization and data encryption. Also this release contains some internal security improvements....cdr (CorelDraw) file format for verification...Implement ability to search .cdr (CorelDraw) files as image documents...