GroupDocs.Metadata for .NET provides functionality that allows working with different kinds of diagrams such as VDX, VSDX, VSX, etc...You are welcome to view and edit metadata of PDF, DOC, DOCX,...
GroupDocs Blog - GroupDocs Blog | Document Automation Solutions for .NET & Java Developers...latest version allows you to edit the objects that can be considered...GroupDocs.Watermark for .NET 18.2. Editing Watermark Objects in Word Documents...