I just can't figure this out. I've found a lot of stuff online about batch converting with sips and automator, but I just can't get any of it to work. I also don't want to batch convert. Here's what I'm trying to do: right-click on an image select a resize service resize image to 450px wide, 72dpi (usually from 300dpi), and set a jpg quality to 80 So I created a new service. The first step is to Copy Finder Item and put it on the desktop. From there, I want to Run Shell Script. Right? I just can't get a script to work using sips (or anything else that will do it). Anyone have an idea how to do this? I tried some short tests. Did this one (that I found online): Code: #bin/bash for f in "$@" do /usr/bin/sips -s dpiHeight 72.0 -s dpiWidth 72.0 $f done Nothing. Didn't change the resolution. I've tried others that resize the file and set a compression level, but I can't get them to work. Any thoughts, or a script I can trigger with Automator?