As mentioned at macintouch, use this setting to change the default format for MacOSX screenshots (cmd-shift-4) to JPEG:
defaults write com.apple.screencapture type jpg
Note that you have to logout and login again to activate the change.
As mentioned at macintouch, use this setting to change the default format for MacOSX screenshots (cmd-shift-4) to JPEG:
defaults write com.apple.screencapture type jpg
Note that you have to logout and login again to activate the change.