What have people here found good to use (a2/mp2)? As far as CPAN mods/interfaces go GD seems to be faster , but it looks awful ImageMagick looks better, more stress on the server Imager looks simple, but even more stress
Some of those have Apache mods that are long unmaintained
The netpbm suite looks ok, but a potential hassle as it would require several pipes to do a transform