PDFChic

Watermark PDF

Stamp a custom text watermark diagonally across every page of your PDF. Control the text and opacity.

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Drop a PDF file here

or click to browse

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How to Add a Watermark to a PDF

Watermarks are used to mark documents as confidential, draft, or proprietary. This tool embeds your text directly into the PDF pages — it cannot be removed without editing the PDF.

How to use this tool

  1. Drop your PDF onto the upload area or click to browse
  2. Type your watermark text — e.g. CONFIDENTIAL, DRAFT, or your company name
  3. Adjust the opacity slider — lower for subtle, higher for prominent
  4. Preview updates in real time below the controls
  5. Click Add Watermark and download

Common watermark texts

  • CONFIDENTIAL — for sensitive internal documents
  • DRAFT — for documents not yet finalised
  • DO NOT COPY — to discourage reproduction
  • Your company or personal name — for ownership marking