[leeoniya]

this is neat. i'm also doing pdf rasterization and pretty extensive document analysis in html5 <canvas>, not just tables. unfortunately it's for an internal tool which will likely form the core of our business but the base library i wrote and use for it is open sourced at https://github.com/leeoniya/pXY.js

tute and demos are here: http://o-0.me/pXY/ , some recent commits like radial scanning aren't documented very well yet but i'll devote some time to it if anyone needs those. they're mostly useful for interactive analysis.

with some creative algorithms, typed arrays and web workers the speed is pretty amazing (for something built in js at least). a 1550x2006 pixel document page analyzes in 1.1s in chrome.