Here's a direct link to the client-side benchmark tool to test your own documents and pull numbers directly:<p><a href="https://www.pdftron.com/benchmarks/pnacl-vs-wasm/" rel="nofollow">https://www.pdftron.com/benchmarks/pnacl-vs-wasm/</a><p>Note that it only works in Chrome b/c it's the only browser that supported PNaCl (recently deprecated). Edge Beta (with chromium underneath) is buggy, so best not to use it for this tool.
Some of the things with javascript PDF renderers overlaps with what we do in bioinformatics (we make http range requests from large binary data files similar to this article's 7gb "linearized" pdf) so it's cool to see what techniques they're using on the bleeding edge