Preview is a tool that most Mac users use every day. I use it for viewing files, playing videos, and viewing images. I even use it for annotating images and making minor image edits.
One of the primary ways that I use Preview with images is when I need to crop an image to only display a specific portion. You could choose to copy and paste the portion of the image that you wish to save to a new photo, but there’s extra steps involved there that aren’t necessary.
Instead, wouldn’t it be better if you could crop an image using a handy keyboard shortcut? In this brief tutorial, I’ll show you how.
Step 1: Open the image that you wish to crop in Preview
Step 2: Use your mouse or trackpad to select the portion of the image that you want to keep
Step 3: Press ⌘+K to crop the image (You can also use Tools → Crop in the menu bar)
It’s really that simple. There’s no need to create a brand new file; just crop the original file and you’re done.