The page count difference between the pdf and print versions is deceptive, as all the content is the same.
The print version has a 16 page booklet and a foldout cover (stapled to the booklet). This has four panels of reference material and two pockets for extra material, in addition to the front and back cover.
The pdf version collects this reference material as numbered pages (and also has two additional pages listed for the front/rear covers). It does not, of course, have the pockets.