This article includes some best free online tools and software to add watermark to PDF in Windows 11/10 computer. By adding a watermark to your PDF files, you can make them a copyrighted material.

Make sure your readers know your document is confidential, a draft, or can’t be copied with an image background. Here’s how to add a watermark in Word.

If you’d like to add a watermark to a specific page in your Microsoft Word document, follow these steps: Open your document and go to the page where you’d like to add a watermark. Click on Design > ...

Next, navigate to the Library sidebar and select PDFs, then double click on Watermark PDF Documents. Click Add in the action and browse to find a suitable watermark image.