To add Watermark in document make your document identical, original etc. Adding Watermark in Google docs is not easy as in Microsoft Word document. There is no such direct option available in Google docs. But there are some simple tricks that you can use to add watermark on Google docs.
Add watermark in Google docs through image transparency
Upload an image or logo which you want to use as a watermark Insert -> Image -> Upload from computer. You can use other option also Drive, Photos, By URL, Camera
Select Wrap Text and adjust the image via drag n drop according to the page. Now click the three vertical dots and select the Adjustments.
Adjust the Transparency of an image from right side panel so that text will be visible over the image.
Now add new text box to it via Insert -> Drawing -> New.
Click on icon T ( text box) and drag text box and resize it
Write your necessary text there then Save and Close
Use addon SIMPLE WATERMARK
You can use SIMPLE WATERMARK addon to add watermark in your google document. Type your required text and customize the font as needed and get a perfect PDF ready to be shared.
Add watermark to Google doc via Microsoft Word Document
In Google docs you’ll find lots of options to download the document, you can use Microsoft Word to add watermark on it. First, you have to download the document from google docs via File -> Download -> Microsoft Word.
Open the downloaded document, go to Design -> Watermark and chose accordingly
These are the above best tricks you can use to add watermark in Google document.