Add text watermark
GroupDocs.Viewer enables you to add a watermark the output HTML/JPG/PNG/PDF.
Here is the recipe:
- Create instance of HtmlViewOptions class (or PngViewOptions, or JpgViewOption, or PdfViewOptions);
- Create a Watermark object and populate its properties;
- Assign Watermark object to HtmlViewOptions.Watermark (or PngViewOptions.Watermark, or JpgViewOptions.Watermark, or PdfViewOptions.Watermark) property;
- Call View method.
The following code sample shows how to apply the watermark to the output pages.
using (Viewer viewer = new Viewer("sample.docx"))
{
HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources();
viewOptions.Watermark = new Watermark("This is a watermark");
viewer.View(viewOptions);
}