Right now, its only possible to "print" one wiki article as a pdf. It would be very helpful to create a function were a user can download a complete Wiki as one pdf file.
Marketing Technology commented
Also it appears COYO does not stick to WIKI markup. https://en.wikipedia.org/wiki/Help:Cheatsheet
Axel Schneider commented
Meanwhile: create an article "root" in the wiki you want to print. Make all current top level article subarticel of "root". Print root with subarticles. Presto.