From inside Photoshop, when you have an image loaded, simply look down at the Layers palette on the lower right hand side of your screen (in default Photoshop setup). You might need to first convert your layer from Background to an actual layer. You can do this by double clicking on it and accepting the box that pops up. After that, just hover your mouse over the layer in your layers palette, hold down the control key on your keyboard, and click. That will load the alpha channel as a selection. You might need to invert it before you delete it, but it should be as simple as that. If your figure disappears when you hit delete, just invert the selection before you hit delete by going to the Selection menu (I think) and choosing select inverse (you might need to look up invert selections in help file if I'm mistaken on the menu). Should be as simple as that. Frank P.S. - If you need to do the same thing over and over to a bunch of files, look into creating an Action that will automatically do this for you. You could possibly also create a Droplet which will automatically run a procedure on a folder of files.