» Fri Dec 02, 2011 10:10 am
Get http://www.gimp.org/ because it rules. Open your avatar in it. Right click the image. Hover over the 'Image' option from the drop down list. Go to 'Scale Image'. You're all set.
GIMP also calculates the opposite value to properly fit the images last dimensions. So if your image is 900x600, and you change height to 60, it will become 90x60 ( if you don't manually change the other value ).