Why put something in a Word or PDF file and email it, when you could simply include that information within the email body itself? Case in point:

A particuarly egregious offense — not only is the information within the PDF something that could be included in the body (a list of the our paid holidays), but the PDF is a scanned image of the the printed sheet. Thus, an email that should have been 4kb, and required no extra clicks, no weighs 200kb, and requires us to open Adobe Reader.
Posted by Shoebox