Invert PDF Colors
Flip a bright white PDF into a dark-background version that's easier on the eyes for night reading.
Popular PDF Tools
YOYOPDF provides browser-based tools for common PDF and image tasks. Fast, easy and free.
Powerful Tools to Work with PDFs
YOYOPDF provides browser-based tools for common PDF and image tasks. Fast, easy and free.
Local by Design
Document contents stay on your device while tools process them in the browser; YOYOPDF does not upload your files.
Blazing Fast
Our tools are optimized for speed to save your time and increase productivity.
Works Across Devices
Use YOYOPDF in a modern desktop, tablet or mobile browser. No installation required.
Always Free
All tools are completely free to use. No hidden charges, no sign up needed.
Everything You Need. All in One Place.
Use YOYOPDF for common PDF and image tasks while keeping document processing on your own device.
Explore YOYOPDF Tools
View all tools →Frequently asked questions
Will this make my PDF look like dark mode?
It inverts every page's colors into a negative palette, which gives a dark-background effect similar to dark mode, though results vary by document.
Does this work well on text-heavy documents?
It works best on simple text documents. Documents with photos or colored graphics will also have those colors inverted, which may look unusual.
Is my file uploaded anywhere?
No, color inversion happens locally in your browser.