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Dark Mode PDF
Dark Mode PDF
What is this tool?
A dark-mode PDF maker. It redraws every page with light and dark swapped and saves a new PDF. Dark mode flips brightness but keeps hues, so a red logo stays reddish; Full invert flips every colour to its opposite, like a photo negative.
When to use it
- Reading a long paper or manual in bed without a bright white glare
- Making slides or notes comfortable on an OLED screen
- Reducing eye strain when a PDF viewer has no dark theme
- Inverting a scanned white-on-black diagram or blueprint
- Making a negative copy for a visual effect
How to use it
- 1Drop in a PDF
- 2Choose Dark mode (keeps colours) or Full invert
- 3Pick a resolution and image quality
- 4Click Make dark PDF and download the result
Frequently asked questions
What is the difference between Dark mode and Full invert?
Full invert flips every colour to its opposite. Dark mode flips only the brightness and then restores the hues, so colourful content looks more natural on the dark page.
Can I still select the text?
No. Each page is redrawn as an image so every pixel, including pictures, can be inverted. Keep your original if you need the text.
Why is the file bigger?
Pages become images. Lowering the resolution or quality makes it smaller.
Is my PDF uploaded?
No — it's processed entirely in your browser.