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Kostenlos Watermark PDF

Stamp a text watermark across every page of a PDF — diagonal, horizontal, or tiled, with adjustable opacity and colour. Runs entirely in your browser.

Keine DateigrößenbeschränkungDateien bleiben privatKeine Anmeldung erforderlichFür immer kostenlos

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Deine Dateien verlassen nie dein Gerät. Die Verarbeitung findet lokal in deinem Browser statt.

Stamp a text watermark (CONFIDENTIAL, DRAFT, your name…) across every page of a PDF. Runs entirely in your browser; the PDF is never uploaded.

Optimize for your platform

Add a CONFIDENTIAL Watermark Add a DRAFT Watermark Watermark with Your Name or Brand Mark a Document as a SAMPLE Mark Documents INTERNAL ONLY

So funktioniert es

Stamping a watermark (CONFIDENTIAL, DRAFT, a name) across a PDF usually means Acrobat or an upload. This draws it on with pdf-lib, in your browser.

1
You drop in a PDF
The page count is read locally with pdf-lib — nothing is uploaded.
2
You set the watermark
Type the text and choose a layout (diagonal, horizontal, or tiled across the page), colour, opacity, and size.
3
It's drawn on every page
pdf-lib draws the semi-transparent, rotated text on each page over the existing content.
4
You download the result
The watermarked PDF is offered for download with the original content intact beneath the watermark.

Mark a document as confidential or draft without sending it to a server — everything is stamped on your device.

Warum unseres?

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files stay on your device — processing happens in your browser

✓Works on any device — phone, tablet, desktop

✓No watermarks on any output

✓Browser memory limits may apply for very large files

Kostenlos Watermark PDF

Optimize for your platform

So funktioniert es

Warum unseres?

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