DC incompatibilty with older versions of Adobe

[rclayton2006]

Others without DC cannot open my .pdf files
I am using Office 16 and Adobe Acrobat XI Pro and other people (without DC) cannot open .pdf files that I generate or manipulate

 

[Alabalcho]

What is "DC"?
Can you post somewhere a sample PDF you generate?

 

[rgd1101]

Adobe Document Cloud | Adobe Acrobat DC
try saving as an older pdf version