The Preview App is a built-in Mac feature that is pretty easy to use and can assist you to easily crop an image and edit it. Different Ways To Edit & Crop The Image On MacBook This article will address that issue and show you some simple ways you can effortlessly edit and crop screenshot on your Mac system like a pro. Well, if that is your current situation, don’t give up. Sadly, you have no idea how to go about this, and you seem to be at a loss. After seeing a great picture that seems to be perfect for your project or website, you take a screenshot of the image with the mind of cropping and editing it for later use.