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...Assembly Product Solution GroupDocs...
This section explains how to apply additional options to customize output document when converting documents with GroupDocs.Conversion for Java...Assembly Product Solution GroupDocs...
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....Assembly Product Solution GroupDocs...
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....Assembly Product Solution GroupDocs...
Note This section describes some basic and advanced use cases of GroupDocs.Watermark for .NET. Please refer to GitHub repository for more examples and samples. Basic Usage Advanced Usage Migration Notes...Assembly Product Solution GroupDocs...