How to change where screenshots are saved on Mac?

Step 1: Search for Terminal in Spotlight Search in the top-right menu bar.
Terminal App

Step 2: Open Terminal and type the following command: defaults write com.apple.screencapture location ~/Documents/Screenshots

Step 3: To apply the changes, enter the following command: killall SystemUIServer

That's it. If you entered the commands successfully, your screenshots will now save to a Screenshots folder within your Documents. Make sure to actually create the folder before applying the changes through Terminal though. Also, you can type any directory that you wish to save screenshots to, as it doesn't have to be ~/Documents/Screenshots if you would prefer something else.