Watermark a PDF - Adobe Inc.
helpx.adobe.com › acrobat › kbJan 07, 2022 · You can add watermark to a PDF through the user interface, or by using C++ code or JavaScript APIs. Add a watermark through the user interface Choose Document > Watermark > Add. Specify the watermark: To reuse a watermark and watermark options that you saved in an earlier session, select it from the Saved Settings menu.