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Add your PDF
Drop the document onto the box above, click to browse, or paste it from your clipboard. It opens locally — the file never leaves your device.
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Type your watermark text
“DRAFT”, “CONFIDENTIAL”, “SAMPLE”, a recipient’s name for review copies — any text works, in any language, including Arabic script.
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Choose placement, opacity and size
Centered mode draws one large diagonal stamp across each page. Tiled mode repeats it in a lighter pattern that survives cropping and screenshots. Drag the sliders until the preview of your mind’s eye matches the page.
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Click “Add watermark”
Your text is rendered with the browser’s own font engine — so ligatures and script shaping are correct — then stamped onto every page on your device.
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Download the result
One click saves the watermarked PDF. The original file is untouched, so you can always produce a clean copy again.
Add a Watermark to a PDF
Stamp your text diagonally across every page — centered or tiled, with opacity and size you control — right in your browser.
Drop a PDF here
Add the PDF file to watermark.
Select a PDFYou can also paste files with Ctrl+V
How to Add a Watermark to a PDF
Why choose our watermark pdf tool?
Any language, correctly shaped
Most PDF libraries cannot join Arabic letters or handle complex scripts. This tool rasterizes your text with the browser’s font engine first, so what you typed is exactly what gets stamped — every script, every ligature.
Centered or tiled — the trade-off is yours
A single centered stamp is elegant and readable. A tiled pattern is harder to remove and survives crops. One click switches between them; opacity and size fine-tune the statement.
The original stays pristine
Watermarking writes a new document and never touches your source file. Produce a watermarked copy for review and keep the clean master for release.
Private by construction
The watermark is generated on your device, in a background worker. Drafts and contracts are exactly the documents you don’t want on someone else’s server — and they never are.
Every page, automatically
Portrait, landscape, mixed sizes — each page is stamped in proportion to its own dimensions, so the watermark reads the same on a slide and on an A4 annex.
Free, unlimited, no watermark on your watermark
No account, no daily cap, no “upgrade to remove our branding”. The only watermark in your file is the one you asked for.
Tips for watermark pdf
- Sending a draft for review? Watermark it with the recipient’s name — leaked copies name their source.
- 25–35% opacity keeps body text readable while making the stamp unmistakable.
- Tiled mode deters screenshot-and-crop extraction better than a single centered stamp.
- Number the pages before watermarking — the numbers then sit under the stamp, reading cleanly.
- For stronger protection, follow up with Protect PDF: a password restricts who opens the file at all.
watermark pdf — Frequently asked questions
How do I add a watermark to a PDF?
Add the file, type your text, pick centered or tiled placement with opacity and size, then click Add watermark. Every page of a new PDF gets the stamp; your original stays untouched.
Can I watermark a PDF with Arabic text?
Yes. The text is rendered by your browser’s font engine before being stamped, so Arabic shapes correctly — joined letters, proper ligatures, right-to-left order.
Will the watermark be easy to remove?
A watermark is a deterrent, not encryption. Tiled mode with moderate opacity is the most robust option here; for actual access control, use Protect PDF to encrypt the file with a password.
Can I use an image as a watermark?
Not yet — this tool stamps text. A logo watermark is on the roadmap; in the meantime, merging a transparent-stamped page is the manual workaround.
Does the watermark change my document’s content?
It overlays new content; the original text, images and vectors are untouched underneath. File size grows slightly — one small image reused across pages.
Are my documents uploaded anywhere?
Never. Everything runs locally in your browser using a Web Worker. You can watermark files with your network disconnected.