Reaching The Free Transform Handles
If you want to use Free Transform on a layer, but your image extends beyond the edges of your document window (and this happens frequently if you’re collaging different photos together), you won’t be able to reach the Free Transform handles to scale your image down to size. Here’s the keyboard shortcut that lets you reach each and every handle, no matter how far the image extends outside your current canvas area. Just press Command-T (PC: Control-T) to bring up Free Transform, then press Command-0 (zero) (PC: Control-0) and your window will zoom out to exactly the right size to enable you to reach all the handles. Cool!