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Invert PDF colours

Make a dark-mode copy of a PDF for night reading. Text stays selectable and searchable. Your files stay in this browser.

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    Limits and notes
    • One PDF up to 50 MB. Tested: 300 pages in 0.4 s.
    • Uses a standard PDF blend mode, shown correctly in Chrome, Edge, Acrobat, macOS Preview and PDF.js. Very old viewers may show a white page. Photos are inverted too.
    • Nothing is uploaded: the work happens in this browser.