Mac OS X some times fascinating me! Isn’t it fantastic to able to resize a folder of image (jpg, png etc.) with a single line of command!?

This is it!

-Z with and height in limit, 640 is the limit in pixels

Original files will be replaced so consider making a backup before trying.

Or create in other folder, for ex. on desktop in “here” folder.

 

Moreover, if you’d like to resize with some sub folders inside of your folder, use this

Bam!

An other :