Save and edit image annotations in Preview
Annotate images with Preview, return later and edit the annotations. Sounds easy? It’s harder than it looks!
Preview is a great app for annotating images like photos and screenshots. Double-click an image in a Finder window and it opens in Preview. Press shift+cmd+A and the markup toolbar appears above the image. It can be used to add shapes like arrows, and you can enter text. At any point, you can click on an object you added and drag it, resize it with the handles at the ends or corners. Text can also be edited.