Lucerna: Dark Mode PDF Reader — ASO

By Alexander Fitterling on AppTrack Ninja.

Read at night, photos intact

Lucerna is a PDF reader for reading at night. The page goes dark — white paper becomes black, black text becomes white — and the photographs stay themselves. That last part is the whole point. Every reader can invert a page. Turn dark mode on elsewhere and the diagrams survive, but every photograph comes back as a negative: faces in X-ray, skies in orange, plates of food no one would eat. Lucerna reads the page's content stream, finds where the images actually sit, and leaves them alone. Text and line art flip; pictures are painted back the right way round. TWO READING MODES, NO DIALS Black &…

Categories: Productivity, Reference

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