watermark pdf
Add a text watermark to every page — no uploads, no accounts.
Click to choose a PDF or drop it here
single file only
Watermark text
Opacity
Applying watermark, please wait…
How to use the Watermark PDF tool
Type your watermark text, choose an opacity, then click Apply. The watermark is stamped diagonally across every page — all in your browser.
Why watermark a PDF?
Watermarks help protect sensitive documents, prevent unauthorized distribution, and brand your files with a name or status label.
FAQ
Which opacity should I use?
Medium (25%) works for most documents. Use Light if you want it barely visible, Heavy if it needs to be prominent.
Does it appear on every page?
Yes — the watermark is applied to every page automatically.
Is my file stored?
No — everything happens in your browser. Nothing is uploaded.
Can I use any text?
Yes — any text works, including words like CONFIDENTIAL, DRAFT, or your company name.