How to add a watermark to a PDF
A watermark signals status at a glance — DRAFT, CONFIDENTIAL, a company name — and discourages passing a document off as final or original. Adding one across every page takes moments and doesn't touch the underlying content.
Here's how to stamp a text watermark in your browser.
Step by step
- 1
Open the Watermark tool
Go to the Watermark tool and add your PDF.
- 2
Set your text and style
Type the watermark text and adjust size, opacity, and whether it runs diagonally across the page.
- 3
Apply and download
Stamp it on every page and download the result.
FAQ
Will the watermark cover my content?
Lower the opacity so it sits lightly over the page — readable but not obscuring. A diagonal, semi-transparent stamp is the usual choice.
Can I use an image watermark, like a logo?
This tool stamps text. To place a logo, add it as an image in the Edit PDF tool.
Is my PDF uploaded?
No — watermarking runs in your browser.