Duplicate and transform selection

Transformation tool+Alt–drag*

Transformation tool+Option–drag*

Display Transform tool dialog box

Select object+double-click Scale tool, Rotate tool, or Shear tool in Toolbox

Select object+double-click Scale tool, Rotate tool, or Shear tool in Toolbox

Decrease size/scale by 1%

Ctrl+,

Command+,

Decrease size/scale by 5%

Ctrl+Alt+,

Command+Option+,

Increase size/scale by 1%

Ctrl+.

Command+.

Increase size/scale by 5%

Ctrl+Alt+.

Command+Option+.

Resize frame and content

Selection tool+Ctrl–drag

Selection tool+Command–drag

Resize frame and content proportionately

Selection tool+Shift

Selection tool+Shift

Constrain proportion

Ellipse tool, Polygon tool, or Rectangle tool+Shift–drag

Ellipse tool, Polygon tool, or Rectangle tool+Shift–drag

Switch image from High Quality Display to Fast Display

Shift+Esc

Shift+Esc

*After you select a transformation tool, hold down the mouse button, and then hold down Alt (Windows) or Option (Mac OS) and drag. Press Shift to constrain movement to 45° angles.