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Foundry✦pdf

PDF tool · in your browser

Watermark PDF for business

Mark proposals, drafts, and internal handouts before they leave your team. Add text like DRAFT, CONFIDENTIAL, or a client name across every page, then download the finished PDF — all without uploading the document to a server.

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Drag & drop PDF file here

or click to choose a file

PDF · processed in your browser, never uploaded

How it works

  1. 1Select your PDF.
  2. 2Type the watermark text, e.g. CONFIDENTIAL.
  3. 3Click Watermark — the stamped PDF downloads instantly.

When this helps

  • Label a proposal DRAFT before internal or client review.
  • Mark sensitive handouts CONFIDENTIAL before controlled distribution.
  • Add a recipient or project name to a shared document copy.

Tips for a clean result

  • Use short, recognizable wording that remains legible over different page layouts.
  • Keep an unwatermarked master because the stamp becomes part of the downloaded PDF.

Frequently asked questions

Where does the watermark appear?+

Diagonally and centered on every page, semi-transparent so the content stays readable.

Are my files uploaded?+

No. The watermark is applied in your browser; nothing is uploaded.

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