Can't print double sided

I recently bought a Canon TR4720 printer; one of the main reasons I got it is because it has an auto duplex feature. I've printed double sided sheets from Google Docs and it works just fine. However, everytime I try to print something in Acrobat the document only comes out printed on the front page. I'm specifically trying to use the Booklet settings and I can't figure out why it won't print on both sides. The "Booklet Subset" is set to 'both sides' and the "Double-Sided" setting in the printer dialogue box is ON. I even looked at the Advanced settings in "Document Properties" and made sure it was in 'Duplex Mode'.

I also tried printing a single two-sided sheet in Acrobat, with the "Print on both sides" box checked and it still didn't work. At first I thought it was a problem with the printer but since it works in Google Docs, it seems like it has to be something with Acrobat.

I'm doing this wirelessly from a Mac, if that matters. Please help!