Grab is an app for Mac OS X that lets you take screenshots of your screen. Grab supports capturing the entire window, the entire screen, or only a portion of your screen. This short tutorial explains how to use Grab to take screenshots.
Launch Grab
You can access Grab in various ways, for instance:
- Grab can be found in the Utilities folder under applications.
- Or type /Applications/Utilities/Grab.app in Finder
- Or Launchpad > Other > Grab

Take a picture of a part of your screen that you select
By clicking Grab > Capture > Selection, you can capture a specific region of your screen by dragging around. After selecting the desired region, the capture will open in a new window that you can save on your computer.
Taking a picture of a window
By clicking Grab > Capture > Window, you can take a picture of a window that you select. A prompt will instruct you to select the window you want to capture and click the “Choose Window”.

Taking a picture of entire screen
By clicking Grap > Capture > Screen, you can take a picture of your entire screen. A prompt will instruct you to click the screen when you are ready to capture your screen.

Taking a picture of a timer on screen
By clicking Grab > Capture > Timed Screen, you can start a timer and activate part of your screen and then take a screenshot. Grab app will capture ten seconds after you start the timer. When you are ready, click the “Start Times” button and you will have ten seconds before the screenshot is captured. After ten seconds, the entire screen will be captured. Timed Screen can be used to take a picture of a menu.

After taking your screenshot, you can see information about it by choosing Edit > Inspector. You can view size and depth. All screenshots will be saved in TIFF format. You may use Preview app to see and change the format of the screenshots.
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[...] Instead of the shortcuts described above, you may use the Grab app to take screenshots. The Grab app is located in the Applications > Utilities folder. To take screenshots, launch Grab, choose the capture type from the “capture” menu: Selection, Window, Screen and Timed Screen. To learn more about Grab Utility, please read this article. [...]