Google has recently rolled out the Watermark feature to Google Docs. You can use this feature to put your school’s logo, a fun picture, the words draft or confidential, or anything into the background of your document.
Open a new Google Doc or even an existing Google Doc. Go to your Insert Menu and select Watermark.
This will bring up the Watermark menu off to the side of your Google Doc.
Click on the option to select your image. You can choose any image from Google Drive, Google Image Search, your Camera, or more.