PrivatePDF Local

Watermark PDF privately.

Watermark PDF by PrivatePDF lets you place a customizable text watermark on every page without sending your document away entirely in your web browser. Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded. There is no account, no watermark, and no file-size limit imposed by the platform.

No uploadFree
  1. 01Add a PDF and select the pages to stamp.
  2. 02Choose text or image, then adjust opacity and rotation.
  3. 03Confirm the live preview and apply the watermark.
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Drop one pdf file hereWe'll build private previews on this device

Built for this exact task

How to use Watermark PDF

Place text or an image watermark with live page previews, opacity, rotation, repeat, and page-selection controls.

Choose and preview

Add a PDF and select the pages to stamp.

Make your changes

Choose text or image, then adjust opacity and rotation.

Verify and download

Confirm the live preview and apply the watermark.

  • Live thumbnail preview
  • Text or image watermark
  • Selected pages or all pages
  • Processing happens entirely in your browser

Key takeaways

  • Processing happens entirely in your browser — files are never uploaded to PrivatePDF servers.
  • No account or signup required to use any tool.
  • No watermarks are added to the output.
  • No platform-imposed file-size limit (practical limit is your device memory).
  • Live thumbnail preview
  • Text or image watermark
  • Selected pages or all pages

Questions about Watermark PDF

Useful answers before you start.

Can I watermark only some pages?

Yes. Click page thumbnails to select exactly where the watermark is applied.

Can I repeat the watermark?

Yes. Enable Repeat across page for a mosaic treatment.

Are my files uploaded to your servers?

Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded.

Is PrivatePDF free to use?

Yes. PrivatePDF is completely free. There is no account, no watermark, and no artificial daily limit.

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