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PDF Watermark

Add custom text watermark to every page of your PDF. Supports opacity and color.

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Click or drag & drop your PDF here

PDF files only

How it works

  • Watermark is placed diagonally at 45° across the center of each page
  • Font size scales proportionally with page dimensions
  • Lower opacity = more transparent watermark
  • Fully client-side — your file is never uploaded
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