Watermark PDF

Add a text or image watermark to PDF pages. Adjust opacity, angle and size, choose page ranges and save the watermarked document.

Free · No sign-up · Files stay on your device

Features

  • Add text, including Chinese characters, or an image watermark.
  • Adjust watermark opacity, angle and size.
  • Apply the watermark to selected pages or all pages.

How to use this tool

  1. Select your PDF and choose text or image watermark mode.
  2. Enter text or choose an image, then adjust the appearance and page ranges.
  3. Process the PDF, inspect the output and download.

Good to know

This tool is free without sign-up, with unlimited processing and exports within the displayed input limits.

  • A watermark changes the document appearance; it does not restrict copying or editing.

Privacy and local processing

This tool processes your input in your browser. Source files and text are not uploaded to a FormatOwl processing server. Advanced-tool access and trial balances are checked online using tool IDs, file types, sizes and page counts. Free tools do not require account authorization. Save the results you need before leaving or refreshing the page.

Processing engines, preview resources or fonts may be downloaded from this site when needed. These downloads do not upload your source content.

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