Result | Windows | Mac OS |
|---|
Reposition marquee while selecting‡ | Any marquee tool (except single column and single row) + spacebar-drag | Any marquee tool (except single column and single row) + spacebar-drag |
Add to, subtract from, or intersect a selection | Any selection tool + Shift or Alt-drag | Any selection tool + Shift or Option-drag |
Constrain marquee to square or circle (if no other selections are active)‡ | Shift-drag | Shift-drag |
Draw marquee from center (if no other selections are active)‡ | Alt-drag | Option-drag |
Constrain shape and draw marquee from center‡ | Shift + Alt-drag | Shift + Option-drag |
Switch to Move tool | Command (except when Hand, Slice, Path*, Shape*, Rectangle Image map§, Circle Image Map§, Polygon Image Map§, or any Pen* tool is selected) | Command (except when Hand, Slice, Path*, Shape*, Rectangle Image map§, Circle Image Map§, Polygon Image Map§, or any Pen* tool is selected) |
Switch from Magnetic Lasso tool to Lasso tool* | Alt-drag | Option-drag |
Switch from Magnetic Lasso tool to polygonal Lasso tool* | Alt-click | Option-click |
Apply/cancel an operation of the Magnetic Lasso* | Enter/Esc | Return/Esc or Command + period |
Move copy of selection | Move tool + Alt-drag selection‡ | Move tool + Option-drag selection‡ |
Move selection area 1 pixel | Any selection + Right Arrow, Left Arrow, Up Arrow, or Down Arrow† | Any selection + Right Arrow, Left Arrow, Up Arrow, or Down Arrow† |
Move selection 1 pixel | Move tool + Right Arrow, Left Arrow, Up Arrow, or Down Arrow†‡ | Move tool + Right Arrow, Left Arrow, Up Arrow, or Down Arrow†‡ |
Move layer 1 pixel when nothing selected on layer | Control + Right Arrow, Left Arrow, Up Arrow, or Down Arrow† | Command + Right Arrow, Left Arrow, Up Arrow, or Down Arrow† |
Increase/decrease detection width* | Magnetic Lasso tool + [ or ] | Magnetic Lasso tool + [ or ] |
Accept cropping or exit cropping | Crop tool + Enter or Esc | Crop tool + Return or Esc |
Toggle crop shield off and on* | / (forward slash) | / (forward slash) |
Make protractor* | Measure tool + Alt-drag end point | Measure tool + Option-drag end point |
Snap guide to ruler ticks (*except when View > Snap is unchecked) | Shift-drag guide | Shift-drag guide |
Convert between horizontal and vertical guide | Alt-drag guide | Option-drag guide |
