PDFJS is fantastic.
But PDFJS folks, how can you do such a subpar job at documentation?
There is really no documentation available on pdfjs. Or a proper changelog. Like in this article they talk about JS execution in pdfjs. And how they have a solution called quickjs. _no_ documentation whatsoever about how to use it.
This has been their documentation for years:
https://mozilla.github.io/pdf.js/api/
Had I created something as complex and magnificent as pdfjs I would've documented _the hell_ out of it.
I get that pdfjs usage in normal web is not their priority and what they care about is the Firefox pdf viewer but I'm sure they would've had a much better contribution rate had they done better api docs.