When closing an unsaved file in Preview, you're presented with the "Do you want to keep this new document" modal:
There doesn't seem to be a quick way to access the Delete button besides tabbing or using the mouse. I work with a lot of quick throwaway screenshots throughout the day and this step slows me down.
Is there a keyboard shortcut for this button, or another way to close files that will not show this dialog?
Best Answer
In a "Save As" window, press ⌘Delete to close the window and delete the unsaved file.
This essentially selects the "Delete" option from that "Save As" window.
Pressing Escape selects the "Cancel" option. Enter selects "Save".