Watermark PDF
Stamp text or image watermarks onto PDF pages without uploading.
Files are processed on your device and are never uploaded.
Watermark image (only used when type is Image)
Files are processed on your device and are never uploaded.
By using this tool, you agree to our Terms and Privacy Policy.
- Add your file(s) above.
- Watermark PDF runs instantly in your browser. Nothing leaves your device.
- Download the result. That's it.
Don't take our word for it. Open your browser's DevTools (F12), click the Network tab, and run the tool. It stays empty, because the code that processes your file shipped to your browser along with this page — there's no server for it to travel to.
- Can I control opacity, angle and position?
- Yes. Type your watermark text or upload an image, then set its opacity, rotation, font size (text only) and position (center or any corner/edge).
- Are my files uploaded to a server?
- No. Everything runs locally in your browser. You can verify it yourself: open DevTools and watch the Network tab while the tool runs. It stays empty the whole time. This also means the tools keep working offline once the page has loaded.
- What are the free limits?
- Free covers every tool at full quality with no watermark and no signup: single jobs, up to 3 files and 25 MB total. Pro adds batch queues (up to 50 files), jobs up to 200 MB, tool chains and saved presets, all from one license that also unlocks the browser extension.