Invert PDF Colors

Invert all colors in your PDF document, creating a negative image effect.

Click to select a file or drag and drop

PDF file

Your files never leave your device.

What is PDF Color Inversion?

PDF color inversion is a process that reverses all colors in a PDF document, creating a "negative" or "dark mode" version. This technique converts light backgrounds to dark and dark text to light, reducing eye strain in low-light environments.

Why invert PDF colors?

  • Eye Comfort: Dark backgrounds reduce blue light emission and glare
  • Night Reading: Perfect for reading PDFs in dim lighting or at night
  • Accessibility: Helps users with photophobia or light sensitivity
  • Battery Saving: Dark mode can extend battery life on OLED/AMOLED screens
  • Visual Preference: Some users simply prefer dark interfaces
  • Print Preparation: Create inverted versions for specific printing needs

Key Features

  • ✓ Inverts all colors (text, images, backgrounds)
  • ✓ Preserves original PDF quality
  • ✓ 100% browser-based processing
  • ✓ No file size limits
  • ✓ Completely free forever
  • ✓ No watermarks added

How to Invert PDF Colors in 3 Steps

1

Upload Your PDF

Drag & drop or select your PDF file. All processing happens locally in your browser—your files never leave your device.

2

Invert Colors

Click "Invert Colors" to process. Our tool automatically reverses all colors while maintaining text clarity and image quality.

3

Download Result

Download your inverted PDF instantly. The new file will have dark backgrounds with light text—perfect for nighttime viewing.

Best Practices for Inverted PDFs

Recommended Uses

  • Reading academic papers or e-books at night
  • Reducing eye strain during extended reading sessions
  • Saving battery on mobile devices with OLED screens
  • Improving accessibility for users with light sensitivity

Tips & Warnings

  • Some colored graphs/charts may need manual adjustment after inversion
  • Scanned PDFs may have reduced contrast—use OCR PDF first for better results
  • For specific color changes, try Background Color or Text Color tools

Frequently Asked Questions

No, the quality remains exactly the same. Color inversion is a mathematical transformation that doesn't compress or degrade the PDF. All text remains vector-based (crisp at any zoom), and images maintain their original resolution. File size may change slightly (±1-2%) due to metadata updates.

Yes, you have two options:

  1. Simply run the inverted PDF through this tool again—inverting an inverted PDF returns it to original colors
  2. Keep your original file (recommended) as we never modify your uploaded file
  3. Use version control in our PDF Editor for more complex workflows

Yes, but with important considerations:

  • Photos: All colors are inverted (blues become orange, greens become purple)
  • Charts/Graphs: Color meanings may reverse—check legibility after inversion
  • Logos/Branding: Brand colors will be completely changed
  • Best for: Text-heavy documents, not design-heavy materials
  • Alternative: Use PDF to Greyscale for simpler color handling

No, there are no file size limits. Since processing happens entirely in your browser:

  • Your device's memory is the only limitation
  • Typical modern browsers handle 500MB+ PDFs without issues
  • Very large files (>1GB) may require more RAM and processing time
  • For extremely large files, consider splitting first with Split PDF
  • All processing is local—no server upload means no artificial limits

This tool inverts all pages. For selective inversion, use this workflow:

  1. Use Split PDF to separate pages you want inverted
  2. Run those pages through this color inverter
  3. Use Merge PDF to combine inverted and original pages
  4. For more control, try PDF Editor with manual color adjustments

Related PDF Tools

Background Color

Change PDF background color

PDF to Greyscale

Convert to black & white

PDF Editor

Advanced color editing