Free Invert PDF Colors Tool — Dark Mode & Sepia
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About the Invert PDF Colors
Recolor a PDF for easier reading — dark mode, sepia, grayscale or high contrast — with a live preview, all in your browser with no upload.
How to use the Invert PDF Colors
- 1Add a PDF — drop it in or click to browse.
- 2Pick a color mode and check the live preview.
- 3Click Download PDF to save the recolored file.
Frequently asked questions
Is this PDF color converter free?
Yes — completely free with no sign-up and no watermark on the result.
Is my PDF uploaded anywhere?
No. Every page is recolored entirely in your browser — the file never leaves your device.
What does dark mode do?
It inverts every color, turning a white background black and dark text light — easier on the eyes for reading on screen in low light.
Will the text still be selectable afterwards?
No — each page is re-rendered as an image to recolor it, so the output isn't a vector PDF anymore. It still prints and displays fine, but text can't be selected or searched.
What's the difference between the modes?
Dark mode inverts colors, Sepia gives an aged paper tone, Grayscale removes all color, and High contrast boosts contrast for easier reading — try each in the preview before downloading.