My coworker and I both have the same version of Illustratir (CS6) and both use Lion on iMacs, but today noticed something weird. He saved a file similar to a file I had done before as both an eps and a pdf and his file size was more than twice what my file sizes usually are. I thought it was odd, so I copied everything from his file into a new file (same dimensions) and saved out an eps and pdf (default settings), and like I thought, my files were less than half the size of his.
Why would two machines be saving identical files at different sizes? Is there a setting somewhere I'm missing? Everything in the file is vector, if it matters. There's not even any editable text.