Booklets
Half-letter and A5 zines from a stack of pages: printed two-up on a sheet, folded once, stapled at the spine. The page order is worked out for you.
Each face of the sheet carries two zine pages, paired so the fold lands between them.
Blank pages fill the last sheet, so a 13-page zine still folds cleanly.
Print double-sided on Letter or A4 and flip on the long edge; the preview shows both faces.
The defaults come from your file. Change a setting and the proof updates before you let go of the mouse.