Many ways to take screenshot on MacOS , like :
1. command + shift + 3 : take entire screen and save it to your desktop
2. command + control + shift + 3 : take a screenshot of your entire screen, saved to your clipboard
3. command + shift + 4 :take a screenshot of part of your screen, saved to your desktop
4. command + control + shift + 4 :take a screenshot of part of your screen, saved to your clipboard
5. command + shift + 5 : Take a screenshot using Grab
You can try above methods to find the difference.
Example: command + shift + 5 : Take a screenshot using Grab and edit it in Apple preview
when you use command + shift +5 , an option bar will appear , you can choose what action you want to . Especially , you can choose where the screenshot to go . As we want to edit our screenshot , we assign [options] to [Apple preview]
then after taking screenshot, will open it in Apple preview directly. By default it’s read only , you can start to edit it by click the [A] symbol near top-right corner in Apple preview as picture show below.
Now we can do mark , add text and so on .
You can check out Apple’s official document here : https://support.apple.com/en-us/HT201361