How to Highlight Screenshot on Mac

Joel Mason

Mac, Tutorials

Have you ever wanted to highlight a specific area of a screenshot on your Mac? Whether you’re creating tutorials, presentations, or simply sharing information with others, highlighting certain parts of a screenshot can make it easier for your audience to understand and focus on the important details. In this tutorial, we’ll walk you through the steps to highlight screenshots on your Mac.

Step 1: Capture the Screenshot

The first step is to capture the screenshot that you want to highlight. You can take a screenshot of the entire screen by pressing Command + Shift + 3 on your keyboard. If you only want to capture a specific part of the screen, press Command + Shift + 4 and then click and drag over the desired area.

Step 2: Open the Screenshot

Once you’ve captured the screenshot, it will be saved as an image file on your desktop by default. Locate the screenshot file and double-click on it to open it in Preview, which is the default image viewer on Mac.

Step 3: Use Markup Tools

Preview offers a range of markup tools that allow you to annotate and highlight images. To access these tools, click on the “Show Markup Toolbar” button located at the top-right corner of the Preview window.

Bold Text

If you want to add bold text to your highlighted area, select the “Text” tool from the markup toolbar. Click anywhere on the image and start typing your desired text. To make it bold, select the text and click on B in the formatting options at the top of Preview window.

Underlined Text

If underlining certain parts of text is necessary for highlighting purposes, use Preview’s “Text” tool and type the desired text. Select the text, click on U in the formatting options to underline it.

Rectangular Highlight

To highlight a specific area of the screenshot, select the “Rectangle” tool from the markup toolbar. Click and drag to create a rectangle around the area you want to highlight. You can adjust the size and position of the rectangle by clicking and dragging its edges.

Circular Highlight

If you prefer a circular highlight instead, select the “Ellipse” tool from the markup toolbar. Click and drag to create a circle around the area you want to highlight. Like with rectangles, you can adjust its size and position as needed.

Step 4: Save or Share

Once you’ve highlighted your screenshot, it’s time to save or share it. To save your edited screenshot, go to File > Save or simply press Command + S on your keyboard. Choose a location to save the file and click Save.

If you want to share your highlighted screenshot directly with others, go to File > Share and select one of the available sharing options such as Mail or Messages.


Highlighting screenshots on your Mac is an effective way to draw attention to specific areas and make your visuals more engaging. By using Preview’s built-in markup tools, you can easily add bold text, underlined text, as well as rectangular or circular highlights. With these simple steps, you’ll be able to create professional-looking annotated screenshots in no time!

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