Converting graphics fast

Every once in a while I have to covert/shrink/modify a picture. First off I suck at graphics (one of my sons is WAY better at it), but, like this time, I had to convert something from .svg to .jpeg and shrink it too. The package that you need to do this is imagemagic, and the command is: 'convert <orginal.svg> -resize 150 <target.jpeg>'. There is a huge number of switches that this thing takes. Check it out!