I can print in duplex from my Brother MFC-J835DW printer when printing from every other program I can think of and Adobe on the web, the fact that I cannot from Adobe DC when I pay to use this software? Get with it and join the 21st century, I ESPECIALLY want duplex capability in ADOBE as most large files and forms that require printing are typically shared as pdf files and I certainly don't want to be wasteful or kill excess trees, but it would certainly appear this isn't a concern of Adobe, noted guess it is time to look for pdf software with a vision and concerns better aligned with my own.