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Add a watermark to PDF (free)

Free tool to overlay watermark text (e.g. CONFIDENTIAL) on every PDF page. Adjust text, opacity, angle and color. No signup, processed in your browser.

How to use Watermark PDF

  1. 1Select a PDF
  2. 2Set the watermark text, opacity, angle and color
  3. 3Press “Add watermark” to download the watermarked PDF

Other tools

Offline PDF tools run entirely in your browser — your files are never uploaded.