Hi, Tony! Received your images, and after a little manipulation, they opened fine. Very nice design, and it really illustrates the concepts!
The files: At first, none would open, giving me invalid or unknown format errors. I looked at them with a low level dump, and discovered what appears to be the main problem. Possibly due to some configuration problem with your email client, or possibly from something else entirely, the files are being transmitted as Mac bin-hex encoding (which is FINE), but may not be flagged, so that the recipient's email client properly recognizes that encoding, in order to extract it. The files were being saved with their application-dependant extension (.pdf, .jpg), but actually still containe the "gibberish" that gets sent via email. I renamed each file to have the extension ".bhx", which enabled WinZip to recognize them as encoded files, open them, and permit saving as the "real" .pdf and .jpg format. Once I did that, they opened fine. Mac users may not have a problem with the "raw" files, taking more information from the content of the file itself, to define how to open it. Windows users though, may have to go through the rename and un-Zip process I did... Thanks for the images!! Dave 37.29N 121.97W -
