Adobe® Photoshop® CS2
December 1, 2007
You've drawn a cool logo and now you want to save it as a custom shape. However, the Define Custom Shape option is grayed out. What's the problem?
If the shape you want to save is a raster image, the Define Custom Shape option on the Edit menu will be unavailable. Custom shapes can only be created from vector shapes. You must first define a vector work path for your shape.
For a quick way to create a work path for a shape, you can select the shape and turn the selection into a work path.
To create a quick custom shape from a raster image:

Updated on May 24, 2008