There are print-and-play files included, so printing them is allowed! (Putting them up on a marketplace and selling them is not, of course.) The print-and-play files are formatted to use with common home printers (and cut yourself with a paper cutter). You could take them to an office supply store, but it would be more expensive. It depends on where you're located!
I will mention that it's likely cheaper to pick up the nice physical decks while a crowdfunding campaign for them is running (rather than print them at home), but that depends on where you're located (and if you have to pay for international shipping, etc.):
http://dungenerator.net/
(Just in case you hadn't seen it!)