Note that actual hard work here seems is done by PDFium, which is what Google bought from Foxit and then relicenced (and keep developing themselves), and which

Note that actual hard work here seems is done by PDFium, which is what Google bought from Foxit and then relicenced (and keep developing themselves), and which is now in Chrome. (I don't take from your work btw, just that it's not a new PDF parser written from scratch or anything.)