Dark mode for research paper PDFs
A paper is text-dense, cross-referenced and full of figures. All three need to survive the conversion, not just the background.
No account required. Preview free, then £0.99 per document.
Two-column layout is untouched
The converter changes colour, not layout — it rewrites the colour instructions inside the existing page rather than rebuilding it, so a two-column typeset paper keeps its exact column structure, margins and page size.
Figures and plots stay meaningful
A figure in a paper is doing a job — a colour-coded plot, a heatmap, a diagram with a legend — and that job depends on its colours meaning what the caption says they mean. Figures are classified individually and their data colours are kept, with only the surrounding white background pushed dark, rather than the whole figure being inverted into something the legend no longer matches.
Links and references keep working
Because the file keeps its underlying structure rather than being turned into flat images, internal links — a citation number jumping to the reference list, a DOI link in the bibliography, cross-references to figures and equations — all keep working exactly as before.
Questions
Will a two-column paper keep its layout?
Yes. Only colour is changed. Column layout, margins and page size are exactly as in the original.
Do citation links and DOI links still work after converting?
Yes. The underlying PDF links and structure are preserved, so clicking a citation number or a DOI link behaves exactly as it did before conversion.
Will a colour-coded chart or heatmap still be readable?
Yes. Figures are classified individually and their data colours are preserved rather than inverted, so a chart still matches its legend.
Can I still search the paper for a term after converting?
Yes, for almost every document. Text is rewritten in place rather than rasterised, so it stays selectable and searchable.