GroupDocs.Metadata provides different ways to save a file with updated metadata.
Please refer to the following guides to know more about all overloads of the save method:...Watermark Product Solution GroupDocs.Editor Product Solution GroupDocs...
Quick Start section about main features of GroupDocs.Annotation API, describes how to annotate documents with just couple lines of code....Watermark Product Solution GroupDocs.Editor Product Solution GroupDocs...
This section shows advanced signature processing like signing, verifying, searching, updating and deletion of electronic signatures with GroupDocs.Signature API....Watermark Product Solution GroupDocs.Editor Product Solution GroupDocs...