Photoshop CS keyboard shortcuts

Viewing

Action	Shortcut
	Windows	Mac
Fit image to window	[Ctrl]0
View image at 100% magnification	[Alt][Ctrl]0
Zoom in or out	[Ctrl]+ or [Ctrl]-
Reposition image with Hand tool	Press [Spacebar] and drag	Press [spacebar] and drag
Move view to upper-left corner	[Home]	[home]
Move view to lower-right corner	[End]	[End]
Cycle through open documents	[Ctrl][Tab]	[control][tab]

Color adjustment dialog boxes

Action	Shortcut
	Windows	Mac
Display Auto Color	[Ctrl][Shift]B	[shift]B
Display Auto Contrast	[Ctrl][Alt][Shift]L	[option][shift]L
Display Auto Levels	[Ctrl][Shift]L	[shift]L
Display Levels	[Ctrl]L	L
Display Curves	[Ctrl]M	M
Display Hue/Saturation	[Ctrl]U	U

File commands

Action	Shortcut
	Windows	Mac
Create new document	[Ctrl]N	N
Display File Browser	[Ctrl][Shift]O	[shift]O
Revert to saved file	[F12]	[F12]
Save as copy	[Ctrl][Alt]S	[option]S
Close all open documents	[Ctrl][Alt]W	[option]W

Selecting

Action	Shortcut
	Windows	Mac
Delete selection	[Backspace]	[delete]
Deselect selection	[Ctrl]D	D
Invert selection	[Ctrl][Shift]I	[shift]I
Reselect selection	[Ctrl][Shift]D	[shift]D
Add to selection	Press [Shift] while using any selection tool	Press [shift] while using any selection tool
Delete from selection	Press [Alt] while using any selection tool	Press [option] while using any selection tool
Move selection using the keyboard	Use one of the arrow keys	Use one of the arrow keys
Move selection using mouse	Position pointer in selection and drag	Position pointer in selection and drag
Constrain selection to square or circle	Hold down [Shift] while selecting	Hold down [shift] while selecting
Select all	[Ctrl]A	A
Hide selection	[Ctrl]H	H

Working with tools

Action	Shortcut
	Windows	Mac
Cycle through hidden tools	[Alt]-click on tool thumbnail	[option]-click on tool thumbnail
Display tool options	Right-click in workspace	[control]-click in workspace
Change cursor to crosshairs	[Caps Lock]	[caps lock]

Using the function keys

Action	Shortcut
	Windows	Mac
Undo last action		[F1]
Toggle Brushes palette	[F5]	[F5]
Toggle Colors palette	[F6]	[F6]
Toggle Layers palette	[F7]	[F7]
Toggle Info palette	[F8]	[F8]

Painting

Action	Shortcut
	Windows	Mac
Access Eyedropper tool to select a color	Hold down [Alt] while using any painting tool	Hold down [option] while using any painting tool
Fill selection with foreground color	[Alt][Backspace]	[option][delete]
Fill selection with background color	[Ctrl][Backspace]	[delete]
Constrain painting to a straight line	[Shift]	[shift]
Display Fill dialog box	[Shift][Backspace]	[shift][delete]