Add a Watermark to PDF — Free, In-Browser (No Upload)
Free PDF watermark tool. Stamp text like CONFIDENTIAL or DRAFT diagonally across every page of your PDF, with control over size, opacity, colour and rotation. Runs in your browser — your PDF never uploads.
Add a Watermark to PDF
Stamp text like "CONFIDENTIAL" across every page — tiled or centred, in seconds.
Drop a PDF here, or click to choose
Processed in your browser — your PDF never uploads
Watermark a PDF without uploading it
Add a text watermark — CONFIDENTIAL, DRAFT, your name, a date, anything — across every page of a PDF. Control the size, opacity, colour and angle, or tile it across the whole page. It’s perfect for marking drafts, protecting documents you’re sharing, or branding handouts. The whole thing runs in your browser: your PDF is never uploaded to a server.
How to use the Watermark PDF
Takes about a minute. No signup, no download, your data stays in your browser.
- 1Open the tool. Scroll up to the Watermark PDF above — it loads instantly in your browser, no install needed.
- 2Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
- 3Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.
Frequently asked questions
Common questions about the Watermark PDF.
Does my PDF get uploaded?
No. The watermark is applied locally in your browser with an in-browser PDF library. Your file never leaves your device.
Can I watermark every page at once?
Yes — the watermark is stamped on every page of the document in one go. You can choose a single centred mark or tile it repeatedly across each page.
Can I change the colour, size and angle?
Yes. You control the text, font size, opacity, colour (from preset swatches) and rotation angle, so the watermark can be subtle or bold, horizontal or diagonal.
Can a watermark be removed later?
The text is drawn into the PDF’s page content, so it’s not a simple toggle to remove — but determined users with PDF editors can. Treat it as a clear visual marker, not hard security. To restrict opening or editing, use our Protect PDF (password) tool.
Can I add an image or logo watermark?
This tool does text watermarks. To place a logo or signature image onto a PDF, use the Sign PDF tool, which stamps an image onto the page.
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