Solved: No Option to Print on Both Sides of Paper? - Adobe Support Community - 9505148
Printing on both sides of the paper (manual duplex printing)
Why the option "Print on both sides of paper" in Foxit print dialog box is greyed out when printing to a brother series printer? – Help Center | Foxit Software
Print double-sided | Adobe Acrobat, Reader
How to Print PDF – The Ultimate Guide - Print Conductor
Printer Settings for Two-Sided Report Cards : Gradelink Support Community
How to Print Double-Sided on a Windows PC or Mac Computer