Stamp any PDF with a custom text watermark — set the wording, color, opacity, size and rotation angle, then download the watermarked file instantly. Useful for marking drafts, confidential documents or proofs before sharing. Your file never leaves your device.
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Stamp any PDF with a custom text watermark — set the wording, color, opacity, size and rotation angle, then download the watermarked file instantly. Useful for marking drafts, confidential documents or proofs before sharing. Your file never leaves your device.
Whether you're a professional or just need a quick result, the PDF Watermark gives you a fast, reliable documents tool that works instantly in your browser. There's no software to install and nothing to sign up for — open the page, get your result and move on. Because everything runs on your own device, it's private by default and available whenever you need it.
The PDF Watermark is part of TechToolsCenter — a free, privacy-first collection of 108+ online tools. Everything runs 100% in your browser, so your data stays private and results are instant.
Input
Output
Formats
Upload a file or paste your text. Processing happens locally in your browser, so nothing is uploaded to a server.
Set the options for your task — pages, order, format or quality — and watch the preview react in real time.
Apply the change. Large files are handled entirely on your device for speed and privacy.
Save the finished file. There are no watermarks and no limits on how often you can use it.
Tips
Common mistakes
Best practices
Input
File upload — e.g. pdf watermark
Output
PDF, generated instantly in your browser
No — the watermark is applied entirely in your browser using JavaScript. Your file is never uploaded anywhere.
It's free, private and works instantly — no sign-up required.
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