Watermark PDF

Stamp a text or logo watermark on every page of your PDF — set position, opacity, size, color and rotation. Text stays selectable, and it all runs in your browser.

Drop a PDF here or browse

Watermark applied to all pages · processed locally

🔒 Your PDF is watermarked entirely in your browser — never uploaded.

How to watermark a PDF

Brand or protect a document by stamping text or a logo over every page — your file stays on your device the whole time.

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1. Drop your PDF

Add the PDF you want to watermark; the first page previews instantly.

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2. Design the mark

Type text like “CONFIDENTIAL” or upload a logo, then set placement, opacity, size and rotation.

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3. Apply & save

Stamp every page and download — text watermarks stay crisp and selectable.

Watermarking is used to mark documents as confidential, draft, paid or sample, and to brand proposals and proofs with a logo. A diagonal tiled watermark is the hardest to crop out, while a subtle corner mark keeps documents readable. Everything is processed locally with pdf-lib, so sensitive contracts never leave your computer. Explore more PDF tools.

Watermark PDF FAQ

Is my PDF uploaded?

No — the watermark is applied locally in your browser, so your document never leaves your device.

Does it keep text selectable?

Yes — text watermarks are added as real vector text, so the original PDF content stays sharp and selectable.

Can I use my logo?

Yes — switch to the Logo tab and upload a PNG or JPG to use it as the watermark.

Is it free?

Yes — completely free, no sign-up, no limits.