Page layout program Adobe InDesign also allow you to set type size in millimeters. The dialog box defaults to points (regardless of your default ruler units), but you can type "2mm" if you want. Kerning and tracking are set in thousandths of an em, and cannot be set in other units. That is probably because an "em" is the width of the character "m" in the current font (typeface, weight, point size), so it is a relative rather than absolute measurement. Jim Elwell
