Quick, easy, gets results!
Had a Pages newsletter document (32MB) that I needed to compress for emailing. Had lots of pics in it. After unsuccessfully trying various means to get it compressed, I hopped on the App store looking for some help. Found this program and gave it a shot. I was able to quickly reduce the newsletter file size to 3 MB!!! And there really is NO appreciable difference in the photo quality for the newsletter. This was $5.99 well spent, for my purposes!
DaveinBG about Compress