Source Shutter Homepage.
Key features include the ability to create, edit and share screenshots, capture a specific area, capture your entire desktop, capture a window, capture a tooltip or menu, capture a website, add text, rectangles, arrows, ellipses and other elements to screenshots, as well as to crop screenshots.
The latest version available is Shutter 0.93.1
To install Shutter just run the following commands via your systems Terminal.
That's it Enjoy!