I'm very new to macs considering I just got one a few months ago. I've been pretty content with all the software but what I really need is somehting I can use to resize images. So i went in search of some free software for mac os to download. I found numerous programs but I'm havign trouble with the download process. The file automatically downloads (using safari) and then appears on my desktop, but when I click on it, I get a message saying it doesn't know what program to use to open the file. I've tried several different programs so I'm pretty sure it's something I'm doing wrong. i'm clueless. any help is GREATLy appreciated. thank you.