MuPDF is a small and fast PDF viewer that can quickly open large PDF files, even on slow computers.WebUpd8 reader David Reimer writes:Larger PDFs (such as those 20Mb+ ones available at Archive.org/details/texts) run miserably slowly in Evince, or about any other PDF reader/viewer I’ve tried in Ubuntu, to the point of being unusable. With MuPDF, [...]