How do I get a decent and printable pdf file of a webpage that contains mathjax?

My attempt: I first went to the webpage, then pressed ctrl+shift+s. Then I pressed save full page . Then I got a nice preview. Then I pressed download. The file downloaded as a png. (I tried to download the file as a pdf by appending .pdf when I was naming the file, but that didn't work: I did get a pdf file; however, it won't open). The contents of the png file became very tiny. See for yourself below: [ Okay, when I upload the file, it doesn't seem tiny. ] I tried to convert this png file to pdf for printing. However, the pdf file's contents also are very tiny . All the content has been cram

Question by tryingtobeastoic on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.