Only the rules are print-friendly. The adventures use hyperlinks in the text to move you around the adventure pages, which of course won’t work in a printed context.
That said, if you did print it, it probably wouldn’t be too hard to figure out which link goes to which page - the links and page titles are usually kind of similar. But I still would recommend using the PDF’s to play them.
Once you start using the procedural missions, you can use only the printed rules.