Photoshop - Opening a File
JJMacks has given you the best method.
You can find a discussion and a link that will download a fit-to-screen script with instructions here.
The quick and dirty method is just to hit Ctrl + 0 to fit to window. On a Mac that would be Cmd + 0.
Living and loving it in Bangkok, Thailand. Canon 7D - See the gear list for the rest.
|Devil Rock (Stuttgart, Germany) by cornissimo|
from Neon Signs
|Carla... by lickity split|
from Beautiful caucasian female faces
|Lunar New Year Fireworks by Michael L NYC 99|
|Vatican Basilica by wam7|
from Street lights