I am designing som educational material in Word (version 14.0.2 ) on my Mac (OSX version 10.8.3 ). The document contains al lot of boxes and shapes with text in them. When i "print to PDF" from Word, the files look perfect on my Mac. But on all PCs I have tried, they are completely screwed up. Colors change, boxes and shapes move around and text jumps out of boxes.
This doesn't seem to be a developer question about PDF Language and Specifications. If you are using Acrobat to make the PDFs, try the Creating, Editing and Exporting PDFs subforum of Acrobat. Be sure to include a reference to a sample file showing the problem, or screen shots comparing Mac and Windows. Good luck!