First, use the Command+Shift+4 keyboard shortcut to take a screenshot of a window.The window will be chosen. Presently, hold the Option key when you press the Left Mouse catch to take the screen capture.When you’re in your desktop you’ll see that there’s no shadow on the screenshot!
Use the Terminal command to disable shadows on all window screenshots
Open the Terminal appYou can do this by clicking on Cmd+Space to search for Spotlight. You can find it in the Launchpad, too.paste in the following statement, after this click the Return/Enter key.
defaults write com.apple.screencapture disable-shadow -bool true
To save the preference, paste the following line and press the Return/Enter key.
killall SystemUIServer
And this is it. Your window screenshots won’t have a shadow anymore!If you want to reverse this change in the future, please use the following lines of code.
defaults write com.apple.screencapture disable-shadow -bool false killall SystemUIServer
