Ruler Origin dialog box
[View > Ruler Origin Settings]
You can change the origin of rulers and the unit of measure for the rulers
- X
Specifies the values for the starting horizontal positions, in terms of the distance in pixels from the top left corner of the Canvas. - Y
Specifies the values for the starting vertical positions, in terms of the distance in pixels from the top left corner of the Canvas. - unit
Specifies the unit of measure for the rulers. You can choose from the default pixels to centimeters or inches.