Some of my friends found that the default format of the screenshot is PNG, although the image is very clear but very large, so how to change the default format of the screenshot? Here is an example of how the Mac can change the default format for saving screenshots.

Detailed as follows

** Step 1, ** Find and open the terminal in the “Others” folder in Launchpad.

** Step 2, ** Enter the command at the terminal

defaults write com.apple.screencapture type jpg
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After enter;

** Warm prompt: ** Save as Gif format command as,

defaults write com.apple.screencapture type gif
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** Step 3, ** After the above operations, continue typing

killall SystemUIServer
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Press enter to restart SystemUIServer.

Finally, you can make sure that the screenshot is in JPG format