Repost from:https://barkingdrum.com/how-to-screenshot-on-mac-tips-tricks/

Whether you only need to take a quick screenshot on your Mac once in a while, are a power user with a complex workflow, or fall somewhere in between, learn how to screenshot on Mac using the free built-in macOS tools or third-party applications. Keyboard shortcuts, tips & techniques, advanced settings, and customizations will all be covered.