Onde Screen Capture for Mac is currently the most powerful screen grabbing utility on Mac OS, by which you can easily capture any part on your Mac desktop such as rectangular or ellipse region, freehand region, full screen, active window or all windows from any webpage or application and so on. With this Mac screenshot capture, you can snag frame rectangular or ellipse region of your desktop. The knobs on the sides and corners can be used to resize the frame according to your need.