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Invert PDF colours

Open a PDF and invert its colours — a light background becomes dark, handy for reading in low light. All in your browser.

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Перетягни PDF сюди або натисни, щоб вибрати файл
🔒 100% у браузері Нічого не завантажується Безкоштовно Повна кирилиця

How it works

  1. Open the PDF whose colours you want to invert.
  2. Each page is turned into a negative (white becomes black).
  3. Save the dark PDF — easy to read in low light.

Frequently asked questions

Why invert a PDF's colours?

A dark (negative) PDF is easier to read at night and in low light, and saves power on OLED screens.

Will the text stay selectable?

No, pages become colour-inverted images, so text is no longer selectable — same as with compression.

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