Files processed locally in your browser
Add Watermark or Page Numbers
Stamp text watermarks or page numbers onto every PDF page locally.
Drop a PDF
How to use this tool
- Drop a PDF.
- Enter watermark text and optional page numbers.
- Download the stamped PDF.
Mark drafts clearly
Add CONFIDENTIAL or DRAFT stamps before sharing packets externally.
Why use FreeTools?
Unlike many online utilities, FreeTools processes your files in the browser using modern Web APIs and WASM libraries. That means faster results on your machine, no waiting for uploads, and a clear privacy story: we never see your documents or photos. No account is required — open the page, drop a file, download the result.
FAQ
Can I change opacity?+
Yes. Use the opacity slider for subtler marks.
Are files uploaded?+
No. Stamping uses pdf-lib in your browser.
Related tools
Keep editing without leaving your browser.