`defaults write com.apple.screencapture type jpg|png|gif|pdf && killall SystemUIServer` --[choose required format] to change OSX's default format for screenshot

`defaults write com.apple.screencapture type jpg|png|gif|pdf && killall SystemUIServer` --[choose required format] to change OSX's default format for screenshots `defaults write com.apple.screencapture location ~/Pictures/Screenshots && killall SystemUIServer` --to change OSX's default save location for screenshots or... the free Yandex Disk[0] has a nice screenshot editor built-in, which can intercept the usual OSX shortcuts, allows you to markup screenshots before saving [with lines, shapes, arrows, text, etc.] and also to customise the file format. [0]https://disk.yandex.com https://disk.yandex.com