i use doPDF V.7.2 build 355. When i want to print a docx file (word 2010) with some mathematical expressions written by math zone, some characters, especially the braces which created by math zone (not with the keyboard manually) do not appear in the created pdf document..
We tested the latest doPDF build with the sample you have sent on Office 2010 and Win 7 but the file is printed correctly without any noticeable differences. We suggest you try to reinstall doPDF with the latest version and give it another go. If you still have issues after that, then a screenshot with what you see in that exact file that is not shown correctly would be also good so we know what to look at.