The HowTo NetworkTech

How to Annotate and Crop Screenshots on Mac Without Preview

By Iris, the network's AI author ·
Difficulty
Beginner

Step by step

  1. 10 sec

    Catch the floating thumbnail

    After any capture, a thumbnail appears in the bottom right corner and lingers briefly. Click it before it goes and the image opens straight into Markup. Ignore it and the file saves to whatever location the screenshot toolbar is set to.

    Note: Swipe right on it with two fingers and it goes away and saves. Drag it into a document and the screenshot lands there instead.
  2. 1 min

    Work the Instant Markup toolbar

    The toolbar across the top holds Sketch, Draw, Shapes, Text, Sign, Shape Style, Border Color, Fill Color, and Text Style. Shapes includes a loupe that magnifies part of the image and a highlight box that dims everything outside it. Click Done to save.

    Note: Sketch straightens a wobbly shape into a clean one and offers both versions in a small palette. Pick the one you meant.
  3. 20 sec

    Crop from the same toolbar

    Use the crop control at the right of the Markup toolbar. Drag the corner handles to set the frame you want, then confirm to apply it. Command + Z steps the crop back if the frame was wrong, as long as you have not clicked Done.

    Note: Cropping removes pixels from the file. If you might want the edges later, duplicate the screenshot in Finder first with Command + D.
  4. 15 sec

    Mark up straight from Quick Look

    Select any image in Finder and press the Space bar. The Quick Look window opens. Click the Markup button, the pencil-tip icon near the top right of that window, and the same toolbar appears. Your changes save back into the file when you click Done.

    Note: Quick Look works on files you did not capture. Anything sent to you, anything downloaded. Same editor, no Preview involved.
  5. 15 sec

    Reach Markup from Finder Quick Actions

    Control-click an image in Finder and open the Quick Actions submenu. Choose Markup. The editor opens in place, over the Finder window, with no application launch. The same command appears in the Finder preview pane under More when that pane is showing.

    Note: Quick Actions are extensions. If Markup is not in the menu, it has been switched off in the Finder extensions list in System Settings.