Mac Screenshot Format: Change PNG to JPEG, GIF or PDF
Mac screenshots default to PNG format, but you can change this by running a Terminal command: type "defaults write com.apple.screencapture type jpeg" and press Enter, then log out and back in. Replace "jpeg" with "gif", "pdf", or "png" to switch formats. The change takes effect after restarting SystemUIServer or logging out.
There are a few things that I tweak when I get a new Macbook, one of which is the screenshot format (mainly because it doesnt natively render in Whatsapp). So I thought I would share the code snippet that you can run in Terminal to alter the default image type of your screenshots:
For JPEG use:
$ defaults write com.apple.screencapture type JPG For GIF use:
$ defaults write com.apple.screencapture type GIF For PDF use:
$ defaults write com.apple.screencapture type PDF For PNG use:
$ defaults write com.apple.screencapture type PNG