Version 1.0 was a great utility that I loved. This version has a crippling bug that does not permit the entry of sensible numbers for size. It's not just me -- friends have noted this as well.

Also, if you're going to have an option for units of dimension (mm, in, px) wouldn't it be better to have these as a 'live' option via popup menu rather than hiding it away in Preferences? The same comment applies to JPEG quality. Great ideas, but poor execution.