UnQTools
PDF Runs in your browser

PDF Watermark

Add a text watermark to any PDF. Control placement (diagonal, tiled, centered), opacity, color, font size, and which pages to watermark. 100% private, runs in your browser.

100% Private Works Offline Instant

Add a text watermark to any PDF. Control placement (diagonal, tiled, centered), opacity, color, font size, and which pages to watermark. 100% private, runs in your browser. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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