GroupDocs.Watermark API allows you to search the possible watermarks placed in any document. You can also search the watermarks that are added using some third-party tool. The found possible watermarks can be removed or their properties can be changed. For more details please refer to the following guides:
Searching watermarks...Total Product Family GroupDocs.Viewer...
Processing email attachments, embedded files, and compressed files with GroupDocs.Viewer for Node.js via Java...Total Product Family GroupDocs.Viewer...
Check this guide and learn how to manage document security for PDF, Word, Excel, PowerPoint file types - add password, update password, remove password using GroupDocs.Merger for .NET....Total Product Family GroupDocs.Viewer...
This section describes GroupDocs.Merger for .NET supported audio types. The Library supports WAV, MP3 and many more....Total Product Family GroupDocs.Viewer...
This section explains how to apply additional options to customize output document when converting documents with GroupDocs.Conversion for Java...Total Product Family GroupDocs.Viewer...
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:...Total Product Family GroupDocs.Viewer...
Save a file with updated metadata to a specified location, to a stream, or back to the original source with GroupDocs.Metadata for Python via .NET....Total Product Family GroupDocs.Viewer...
Following this guide you will learn how to load PDF, Word, Excel, PowerPoint documents by local file path, stream or URL for further processing with GroupDocs.Conversion for Node.js via Java API....Total Product Family GroupDocs.Viewer...