⇧ + or -
Cycle through blending modes
⇧ Delete
Display Fill dialog box
/
Lock transparent pixels on/off
[ or ]
Decrease/increase brush size
⇧ [ or ]
Decrease/increase brush softness/hardness in 25% increments
, or .
Select previous/next brush size
⇧ , or .
Select first/last brush
⇪
Display precise cross hair for brushes
⌘ D
Deselect a selection
␣-drag
Reposition marquee while selecting
⇧ drag
Constrain marquee to square or circle (if no other selections are active)
⌥ drag
Draw marquee from center (if no other selections are active)
⇧ ⌥-drag
Constrain shape and draw marquee from center
⌥-click and drag
Switch from Magnetic Lasso tool to Polygonal Lasso tool
Delete
Delete last anchor point for Magnetic or Polygonal Lasso tool
↩ or ⎋
Apply/cancel an operation of the Magnetic Lasso tool
/
Toggle crop shield off and on
⌘ ?
Open Help
F4
Show/Hide Tool Options
F5
Show/Hide Photo Bin
F6
Show/Hide Effects panel
F7
Show/Hide Graphics panel
F8
Show/Hide Info panel
⌥ F9
Show/Hide Histogram panel
⌥ F10
Show/Hide History panel
⌥ F11
Show/Hide Layers panel
⌥ F12
Show/Hide Navigator panel
⌘
Change Cancel button to Default
⌥
Change Cancel button to Reset
⌘ Z
Undo/redo
⌘ ⇧ Z
Step forward
⌘ ⌥ Z
Step backward
⇧ ↩
Apply value and keep text box active
⌘ ⇧ E
Merge visible layers
⌥ . or ,
Activate bottom/top layer
⌥ [ or ]
Select next layer down/up
⌘ [ or ]
Move target layer down/up
⌘ ⇧ ⌥ E
Merge a copy of all visible layers into target layer
⌘ E
Merge down
/
Toggle lock transparency for target layer, or last applied lock
⇧ ⌥ [ or]
Add to layer selection in Layers panel
W
Warp tool
T
Turbulence tool
C
Twirl Clockwise tool
L
Twirl Counter Clockwise tool
P
Pucker tool
B
Bloat tool
S
Shift Pixels tool
M
Reflection tool
E
Reconstruct tool
Z
Zoom tool
H
Hand tool
A
Select Image tool
R
Rotate Image tool
V
Set Vanishing Point tool (Perspective option selected)
Z
Zoom tool
H
Hand tool
␣
Switch to Hand tool
⌘ Z
Step backward
⌘ ⇧ Z
Step forward
← → ↑ ↓
Move selected image 1 pixel
⌥
Change Cancel button to Reset
⇧ + or -
Cycle through blending modes
⇧ ⌥ N
Normal
⇧ ⌥ I
Dissolve
⇧ ⌥ Q
Behind
⇧ ⌥ R
Clear
⇧ ⌥ K
Darken
⇧ ⌥ M
Multiply
⇧ ⌥ B
Color Burn
⇧ ⌥ A
Linear Burn
⇧ ⌥ G
Lighten
⇧ ⌥ S
Screen
⇧ ⌥ D
Color Dodge
⇧ ⌥ W
Linear Dodge
⇧ ⌥ O
Overlay
⇧ ⌥ F
Soft Light
⇧ ⌥ H
Hard Light
⇧ ⌥ V
Vivid Light
⇧ ⌥ J
Linear Light
⇧ ⌥ Z
Pin Light
⇧ ⌥ L
Hard Mix
⇧ ⌥ E
Difference
⇧ ⌥ X
Exclusion
⇧ ⌥ U
Hue
⇧ ⌥ T
Saturation
⇧ ⌥ C
Color
⇧ ⌥ Y
Luminosity
⇧
Select characters from insertion point to mouse click point
⌘ ⇧ Y
Return to default font style
⌘ ⇧ U
Turn Underlining on/off
⌘ ⇧ /
Turn Strikethrough on/off
⌘ ⇧ , or .
Decrease or increase type size of selected text 2 pts/px
Switch to Hand tool (when not in text-edit mode)
␣
Switch to Zoom In tool
⌘ ␣
Switch to Zoom Out tool
⌥ ␣
Reposition zoom marquee while dragging
drag-␣
Scroll up or down 1 screen
fn ↑ or ↓
Scroll up or down 10 units
⇧ ↑ or ↓
Scroll left or right 1 screen
⌘ ↑ or ↓
Scroll left or right 10 units
⌘⇧↑ or ↓
Move view to upper-left corner or lower- right corner
fn ← or →