Add text watermark

GroupDocs.Viewer enables you to apply a watermark on the output pages (HTML / Image / PDF).

Here is the recipe:

The following code sample shows how to apply the watermark to the output pages.

    try (Viewer viewer = new Viewer("sample.docx")) {
        HtmlViewOptions viewOptions = HtmlViewOptions.forEmbeddedResources();
        viewOptions.setWatermark(new Watermark("This is a watermark"));
    
        viewer.view(viewOptions);
    }