About PDF Dark
Convert any PDF to dark mode in your browser. Photos keep their original colors. No upload, no signup, free. Open source.
PDF Dark turns any PDF into a real dark-mode file you can download, share, and reread anywhere. The entire conversion happens in your browser — your file never touches a server, verifiable in DevTools. A saturation-based algorithm preserves photos and charts in their original colors while darkening the rest. Output is a standard PDF (not a viewer toggle), so it stays dark on Kindle, iPad, Acrobat, anywhere. Free, MIT-licensed, no signup, no ads.
How we collaborate
Works as
Serves / ships toGlobal
EngagementOne-time project
Price bandFree
Lead timeReady / in-stock
Highlights
- 100% client-side — your file never leaves your browser
- Free, MIT-licensed, no signup or ads
- Smart saturation algorithm preserves photos & charts in color
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Location
🇨🇳Shenzhen, China
Location shown on map (Shenzhen, China). Exact address is shared after you connect.
Business details
Legal entitySole proprietor
Registration country🇨🇳 China
Founded2026
Verification statusUnverified
