HoverSnap is simply a program of capture of screen. It is very intuitive and supports formats jpg, bmp, png, and gif.
HoverSnap can capture the screen, the active window or a selection on the window. You can even capture stacked windows.
You can configure the file of capture, the name of file and format. If you choose to opt for the automatic names, it will show the date and the hour of capture. This option is very interesting when they undertake successive captures.
You can also reduce the size of the capture and link a sound during this action.