Take screenshot on Mac OS X
Mac OS X has several built-in shortcuts to take screenshots. Since Mac OS X 10.4 (Tiger) screenshots are saved in png format.
- Take screenshot of the whole screen
Command + Shift + 3 - Take screenshot of selected area
Command + Shift + 4 > select area - Take screenshot of a selected Window
Command + Shift + 4 > press Space > select Window
Screenshot files will be saved on the Desktop.
Read more: Take screenshot on Mac OS X