View Window - Transform | Trim to Proportion | 1:1 (Square), 3:2...

 

 

Use these menu selections to trim the open image to a specific proportional size.

 

 

A masked selection rectangle will display, indicating the area to be trimmed. You can move and resize this area using the mouse and then click Edit | Apply from the view window menu or simply press the [Enter] key to trim the image to your selected area.

 

Note: The selection rectangle can be resized diagonally only, since the chosen proportion must be maintained.