Want to get the data out of a PDF figure? As in, the actual data – not a rough trace-along-the-lines version?

A few years ago I made a somewhat popular R package that allowed users to extract the underlying geometry of a PDF figure, so they could get the exact data points that went into the original figure. (Which came in handy for public health emergencies, when governments often release crucial data buried in PDF figures.)

But the user experience was still a bit clunky – it required ghostscript to be set up, and there were some intermediate output files that required manual edits.

So I rebuilt it with Claude Code. Everything runs locally in the browser, and hopefully now a much smoother experience!

Try it out here: adamkucharski.github.io…