How to Invert PDF Colors for Dark-Mode Reading
Updated July 13, 2026
A bright white PDF is uncomfortable to read at night, and a dark-background design floods a printer with ink. Inverting flips every color in the document so it’s comfortable in one situation or economical in the other.
Steps
- Open Invert Colors and drop your PDF.
- Click Invert colors.
- Download the inverted PDF.
How it works
Each page is rendered and its colors are inverted, then rebuilt into a new PDF at the original page size — white backgrounds become dark, black text becomes light. Because this is a visual transform rather than a text edit, the resulting pages are images: they look right, but the text is no longer selectable or searchable, so hold onto your original if you’ll need to copy from it later.
Notes
Rendering happens locally at a balanced resolution, so even a longer document is inverted without anything leaving your device. Password-protected PDFs need to be unlocked first. Since the output is image-based, Compress PDF is worth running afterward if file size matters, and PDF to JPG is the tool to reach for if you actually want individual page images rather than a PDF.