Aha, I have the free version that's exactly why I couldn't reduce it.
Regarding zipping it, I right clicked on the file and it was an option so I figured it would work. It gave me what looked like a zipped version (with the little zipper on the folder) but it didn't go through so maybe it didn't really zip it (?)
PJ, I'm gonna try your link. Thanks so much for all your help!
....but the world goes 'round