Lampka

A dark PDF reader that keeps pictures in colour

Most dark modes turn the whole page into a negative, so photos and charts stop making sense. Lampka darkens only the text and paper.

Text goes dark, pictures don't Free

Choose Dusk, Night, Midnight or Amber. Text and paper change colour; photos, diagrams and coloured drawings keep theirs.

A research paper in Lampka's Night theme: the text is light on a dark page, while the bar chart keeps its white background and coloured bars

Dimmer at night Free

Brightness and contrast are remembered for each theme. Evening mode switches to your night theme at the time you choose, and back in the morning.

Nothing flashes bright Free

Pages that were designed dark, like slides, can be recoloured to match, so turning a page never dazzles you.

Your own colours Free

Pick any text and background colours, save them as a theme, and share it as a small file.

Your PDF stays as it was

The colours are only how Lampka shows the page. The file itself is never changed.

Try it free

Lampka for Windows 10 and 11 is free while it's in beta. It works offline and you don't need an account.

Download the free beta

During the beta, everything marked Pro is free too. Afterwards reading stays free, and the Pro tools are a one-time purchase.

Founders get Pro for £15 until 1.0. See pricing

More about Lampka: All guides How it keeps figures in colour Read aloud Papers and theses Manual