Add text watermarks Leave feedback

To add a watermark to the HTML/JPG/PNG/PDF output, follow these steps:

1. Create an instance of the HtmlViewOptions class (or PngViewOptions, or JpgViewOptions, or PdfViewOptions);
2. Create a Watermark object and populate its properties;
3. Call the setWatermark method of the HtmlViewOptions (or PngViewOptions, or JpgViewOptions, or PdfViewOptions) class and specify the object created on step 2;
4. Call the Viewer.view() method.

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

const viewer = new groupdocs.viewer.Viewer("sample.docx")
// Create an HTML file.
const viewOptions = groupdocs.viewer.HtmlViewOptions.forEmbeddedResources(output-watermark.html)
// Add watermark.
const watermark = new groupdocs.viewer.Watermark('This is a watermark')
viewOptions.setWatermark(watermark);
viewer.view(viewOptions)