Fill Commands

These commands fill the entire later: to fill with Foreground color, use Option-Delete. To fill with Background color, press Command-Delete.

These commands only fill areas in the layer where there are pixels (preserving transparency). To fill with Foreground color, use Option-Shift-Delete. Press Command-Shift-Delete to fill with Background color.

Trim Your Photoshop File Size

If you have elements that extend beyond the image window, although you can’t see them, they’re still there and are adding to your file size. If you’ve determined that you don’t need those "unseen" parts, press Command-A to Select All, then go to the image menu and choose crop to cut off the hidden areas and trim your file size.

Preview Feathering

Rather than guessing what amount of feathering to use, try this. Make a selection with no feathering, press Q for quick mask mode, then use Gaussian Blur filter. Using the colored overlay you’ll be able to preview the equivelent of feathering – the amount you choose for the Gaussian Blur is equivalent to feathering.

Maximum Value in Dialogs?

If you’re in a dialog that is promoting you to enter a value but you’re not sure what the range of numbers really is, enter an abnormally high number like 9999 and press return – Photoshop will change the number to the highest possible value. Similarly, you could use the same trick to find the lowest value by entering 0 and then pressing return.

Open the Fill Dialog

It’s an odd one, but to open the fill dialog, press Shift-delete.