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Gratis 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.

Geen bestandsgroottelimietBestanden blijven privéGeen aanmelding vereistVoor altijd gratis

Sleep bestanden hierheen of klik om te bladeren

PDF geen bestandsgroottelimiet

Bestanden bladeren

Jouw bestanden verlaten nooit je apparaat. Alle verwerking vindt lokaal in je browser plaats.

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

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Hoe het werkt

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

Waarom de onze?

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

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