Quick keys

Screen Grab

Command + Shift + 4

Save File

Command + S

Quit Application

Command + Q

Create New File

Command + N

Open Existing Image

Command + O

Enlarge/Magnify

Command + +(plus key)

Shrink

Command + -(minus key)

Guidelines on/off

Command + ; (semi-colon key)

Scale or Rotate

Command + T

Hue/Saturation

Command + U

Select All

Command + A

Undo

Command + Z

Drop Selection

Command + D

Levels

Command + L

Paste

Command + V

Copy

Command + C

Cut

Command + X

Rulers

Command + R

Move Image

Hold Space Bar

Scale Brushes

Bracket Keys

Presentation Mode

F (click twice)

Invert selection

Command + Shift + I

Duplicate Selection

Command + Option + Drag

Switches Color Swatches

X

Defaults Color Swatches

Blk/Wht D

Invert Image

Command + I