One of the most requested and hence actively developed features in GroupDocs.Viewer for .NET is watermarking. Watermarking allows you To protect documents that you display on the web from screen-grabbing. In GroupDocs.Viewer for .NET watermarks are implemented as cusTomizable text that can be added over a displayed document, overlapping its content. For the first time the ability To add watermarks was implemented in GroupDocs.Viewer for .NET version 2.0. In its first implementation, the feature had a number of restrictions....One of the most requested and hence actively developed features...watermarks could be used only in the image-based rendering mode and the...