Add a watermark to a PDF
Drop in a PDF and stamp text like “DRAFT” or your logo across the pages you choose. Set the opacity, anchor and angle, then download. Everything runs on your device.
Watermark a PDF without uploading it
Branding or marking a document as confidential shouldn’t mean uploading it. The watermark is drawn onto the pages in your browser, so the file never leaves your device.
Text or logo, exactly where you want it
Stamp built-in text such as “DRAFT” or “CONFIDENTIAL”, or place your own logo. Pick a preset anchor (center / top / bottom), set any angle for a diagonal mark, and choose the opacity so it’s visible without hiding the content.
Your files never leave your browser
There's no upload. Everything happens on your device using WebAssembly — the bytes never travel to a server, so your documents stay yours. No ads, no third-party trackers, no accounts. We collect only an anonymous count of how often each tool is used. It's free, and it stays free.
How it works
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Drop in your PDF — Or click to choose one. It stays on your device.
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Set up the mark — Type text or pick a logo, then choose opacity, a preset anchor and an angle.
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Choose pages and download — Target all pages or a range like “1-5, 8”, then download the stamped PDF.
Frequently asked questions
- Can I watermark only some pages?
- Yes. Target every page, or a print-style range like “1-5, 8”. Watermarking only stamps the chosen pages — it never removes any.
- Can I use my own logo?
- Yes — stamp a text watermark using built-in fonts, or upload an image/logo to stamp instead.
- Are my files uploaded anywhere?
- No. Everything happens in your browser; files never leave your device.
- Is it really free?
- Yes — no account, no payment, no watermark on your output.