Useful Photoshop keyboard shortcuts

MAC WIN
Brushes
Brush size - decrease/increase current brush size [ or ] (left/right brackets) [ or ] (left/right brackets)
Brush feathering - decrease/increase brush feathering Shift + [ or ] (left/right brackets) Shift + [ or ] (left/right brackets)
Fill
Display fill dialog box Shift + Delete Shift + Backspace
Fill with foreground color Option (Alt) + Delete Alt + Backspace
Fill with background color Cmd + Delete Crtl + Backspace
Filters
Fade last filter used Cmd + Shift + F Ctrl + Shift + F
Reapply last filter used Cmd + F Ctrl + F
Image Adjustments
Levels Cmd + L Ctrl + L
Hue/Saturation Cmd + U Ctrl + U
Desaturation Cmd + Shift + U Ctrl + Shift + U
Invert Cmd + I Ctrl + I
Layers
Duplicate layer (no active selection) Cmd + J Ctrl + J
Copy selection on new layer (selection on active layer) Cmd + J Ctrl + J
Create duplicate on new layer before transforming Cmd + Option (Alt) + T Crtl + Alt + T
Tool Bar
Temporarily convert to move tool Cmd Ctrl
Constrain marquee to square or circle Shift + drag marquee Shift + drag marquee
Draw marquee from center Option (Alt) + drag marquee Alt + drag marquee
Exchange foreground and background colors X X
Reset to default black and white D D
Maximize window size double-click hand tool double-click hand tool
100% magnification double-click zoom tool double-click zoom tool
View
Show/hide rulers Cmd + R Ctrl + R
Show/hide extras Cmd + H Ctrl + H
Show/hide guides Cmd + ; Ctrl + ;
Palettes
Show/hide all palettes Tab Tab
Show/hide brushes palette F5 F5
Show/hide swatches palette F6 F6
Show/hide layers palette F7 F7
Show/hide info palette F8 F8
Show/hide history palette F9 F9
save placement of palettes window > workspace window > workspace
misc.
Show contextual menus Ctrl + click mouse right-click mouse
Cycle through open documents Ctrl + Tab Ctrl + Tab
Reset default preferences when opening Photoshop double-click icon then immediately hold down Cmd + Option (Alt) + Shift
double-click icon then immediately hold down Ctrl + Alt + Shift
Screen capture

Cmd + Shift + 3
saves file 'Picture 1' to desktop

Cmd + Shift + 4
select area and paste w/ Cmd + V

 

Print Screen key

additional shortcuts