This article explains how to add a watermark to a Google Doc. You can insert an image watermark or a text watermark. These steps will work for any operating system with a modern browser, such as Edge, Chrome, Firefox, etc.
How to add a watermark in Google Docs
With a watermark in Google Docs, you can protect a document with your logo or mark something as draft, confidential, copyrighted, etc. The watermark can be any image or text you want.
There is a watermark feature built into Docs and there are many options to specify where to find the image you want to use.
Open the document and go to Insert > Watermark.
