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NGPDFs

Invert PDF Colors

Restyle any PDF for comfortable reading: full color inversion, grayscale, sepia, boosted high-contrast black & white, or a dark-reading mode for night-time. Pages render at your chosen DPI with honest disclosure that text becomes rasterized.

  • Processed locally in your browser
  • No watermark
  • No sign-up
  • Works offline

Choose a PDF or drop it here

One PDF · transformed locally

This tool rasterizes each page at your chosen DPI and rebuilds the PDF. Text will no longer be selectable and file size usually increases. Keep the original for archival.

How it works

  1. 1Open a PDF.
  2. 2Pick a mode: invert, grayscale, sepia, high contrast or dark reading.
  3. 3Choose render DPI (memory-safe caps applied automatically).
  4. 4Download the restyled document.

Your privacy

This tool runs entirely inside your browser using JavaScript and Web Workers. Your document is never uploaded to any server — you can even disconnect from the internet and keep working once the page has loaded.

Frequently asked questions

▸Why is text no longer selectable?

Color transforms require re-rendering pages as images. We say this up front rather than pretending otherwise - keep the original file for archival.

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