Watermark PDF
Add a text or image watermark to PDF pages, with the opacity and angle you choose. Free, no sign-up, works on desktop and mobile.
🔒 Your files never leave your device — everything is processed in your browser, and the file is not uploaded to any server.
How to use
- Choose a PDF.
- Type the watermark text or choose an image, then the opacity and angle.
- Press Start and download the file.
FAQ
Is my file uploaded?
No. Everything is processed in your browser on your device; the file is never sent to a server.
Is it free?
Yes, completely free with no sign-up.