1PDF

Invert colours

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Turn light pages dark and dark pages light.

Drop your PDFs here

PDF files · up to 50 MB each

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Processed on your device.

Saved workspaces on this device

Files are saved only when you choose Save. Up to 5 workspaces and 200 MB total. Browser storage may be cleared; download important files separately.

    How it works

    1. 1Choose your PDF file.
    2. 2Choose a resolution and pages.
    3. 3Download the inverted PDF.

    Originals stay unchanged. Save results before leaving, or explicitly save this workspace on your device. Manipulation tools require unlocked, flattened PDFs. Layout changes require pages without annotations or links. New outputs may lose bookmarks and digital signatures.