Convert any PDF to dark mode — fully in your browser
PDF Dark converts any PDF to true dark mode entirely in your browser. The entire conversion happens client-side — your file never touches a server, verifiable in DevTools. A saturation-based algorithm preserves photos and color charts in their original tones while darkening the rest. Output is a standard PDF file that stays dark in Kindle, iPad, Acrobat, anywhere. Free, MIT-licensed, no signup, no ads. Open source on GitHub.
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