What is a Screenshot?

A screenshot (also known as a screen snapshot, screen dump or screen capture) is an image of a computer monitor or another visual output device.

Creating a Screenshot in Windows

  • [PrintScrn] (Print Screen) will capture everything you can see on the monitor and copy it to the clipboard.
  • [Alt] + [PrintScrn] will only capture the active window and copy it to the clipboard.

The image from the clipboard can then be pasted into any application that accepts images (Paint, Photoshop, Illustrator, Word, etc.)

Windows also comes with a screenshot utility called Snipping Tool which can save your snip in various file formats.

Creating a Screenshot in Mac OSX

  • Command+Shift+3 will capture entire screen and save it as a file to the desktop
  • Command+Shift+4 will capture an area that you have selected and save it as a file to the desktop
  • Command+Shift+4, then tapping the Space Bar will capture a window, menu, or the desktop icon and save it as a file to the desktop.
  • Adding the Control Key to any of the above will place the image on the clipboard instead of the desktop

The image saved to the desktop can be opened in any application that can open a PNG file (Preview, Photoshop, etc.)

Mac OSX also has a built-in utility called Grab. You will find this application in the utility folder.

There are four options under the "Capture" menu:
  • Selection will capture just a section of the screen in which you used your mouse to make a selection.
  • Window will prompt you with a pop-up in which you’ll need to click a button in that dialog window indicating to the Grab application that you are about to select the window that you want to capture.
  • Screen will capture the entire screen for you.
  • Timed Screen will capture the screen after a certain amount of time, which is 10 seconds.