Apple Mac Screen Grab Defaults
A quick tip for those using a Mac. I needed to grab a screenshot and save it as a PDF – it was for an error and the support department I was using insisted on a PDF screen shot. I have used the various screen grab keys on the Mac for years – Command-Shift-4 to grab an area etc, but I did not know you could change the default file save format. Lots of details at http://guides.macrumors.com/Taking_Screenshots_in_Mac_OS_X
defaults write com.apple.screencapture type image_format
image format can be pdf, jpg, png etc..