PFreePDFKit

Add a Watermark to PDF

Stamp text across every page — ideal for drafts, confidential files and branding.

Drop your file hereor click to browse

How to add a watermark to pdf

  1. Select your PDF.
  2. Type the watermark text and set opacity, angle and colour.
  3. Download the watermarked PDF.

Frequently asked questions

Do I need to upload my file?

No. Everything is processed locally in your browser — the file never leaves your device.

Is there a file size or page limit?

No artificial limits. Very large files depend on your device memory; a modern laptop handles hundreds of MB without trouble.

Does it cost anything?

Nothing. All tools are free, with no sign-up and no watermark.

Which browsers are supported?

Any recent version of Chrome, Edge, Firefox or Safari with JavaScript enabled.

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