No, but I copy it to the copy buffer...
To copy the entire screen, press Command-Control-Shift-3. The screen shot will be placed on your clipboard for you to paste into another program like PowerPoint, Word, Photoshop, etc.
To copy a portion of the screen to the clipboard, press Command-Control-Shift-4. A cross-hair cursor will appear and you can click and drag to select the area you wish to capture. When you release the mouse button, you can paste the screen shot to another application.
To copy a specific application window, press and hold Command-Control-Shift-4 then tap on the Spacebar. The cursor will change to a camera, which you can move around the screen. As you move the cursor over an application window, the window will be highlighted. The entire window does not need to be visible for you to capture it. When you have the cursor over a window you want to capture, just click the mouse button and you can paste the screen shot into another application.
Personally I use Craphic Converter & CMD+j keys opens the Copy Buffer in a new Window & allows editing & saving where & as wgat Name & extension to use.