Add a watermark to a PDF
Add a diagonal text watermark (like CONFIDENTIAL or DRAFT) to every page of a PDF, free and in your browser. Files stay on your device. No watermark from us.
- Runs in your browser: files are never uploaded
- No watermark, no sign-up
- Free to use
What you can do with Watermark PDF
- Stamp a diagonal text watermark such as CONFIDENTIAL or DRAFT across your PDF
- Type your own watermark text and apply it to every page in one go
- Get a semi-transparent watermark that marks the document without hiding the content underneath
- Add the watermark entirely in your browser, so the file is never uploaded to any server
- Use it free with no sign-up and no extra watermark added by us beyond the one you choose
How it works
- 1
Add your PDF
Drop in the file. It is never uploaded.
- 2
Type the watermark
Enter the text to stamp, such as CONFIDENTIAL or DRAFT.
- 3
Add it and download
Press Add watermark. The text goes diagonally across every page, semi-transparent so the content stays readable.
Watermark PDF FAQ
Does the watermark go on every page?
Yes. Your chosen text is stamped diagonally across every page of the PDF in one step, so the whole document is marked consistently.
Will the watermark hide the text underneath?
No. The watermark is drawn semi-transparent and set at an angle, so it clearly marks the page while the original content stays readable behind it.
Is my file safe and private?
Yes. The watermark is applied entirely in your browser, so your PDF never leaves your device. The tool is free with no sign-up required.
Drag & drop your file here
Private: processed in your browser