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Welcome to the GroupDocs.Watermark Redaction for .NET

GroupDocs.Watermark Redaction for .NET is an API for adding watermarks to removing sensitive and classified information from the documents of different file formats. It provides the effective watermarking methods that allow you to add watermarks that are hard to be automatically removed by third-party tools. It also allows you to search and remove previously added watermarks of popular types (including watermarks added by third-party tools) in a document. The API provides straightforward and easy to use set of methods to add, search, and remove watermarks in supported file formats.


The API provides a single format-independent interface for removing sensitive and classified information from the documents. Using the API you can remove sensitive information and content from the document using different redaction methods and save the document in its original format and create a sanitized PDF document with raster images of original pages.

GroupDocs.Redaction for .NET Resources

Following are the links to some useful resources you may need to accomplish your tasks.