Macro Language Reference > PIs > Text > <?tkusr4>
  
<?tkusr4>
Description
Specifies a percentage by which special kerning, i.e. that defined in group number 4 of a user defined kerning table, is gauged to make it looser or tighter.
Syntax
<?tkusr4 kern user percent:n?>
<?tkusr4>
[no parameter]
Invoke the Kern percent - user (special) dialog box.
kern user percent
1..99
Loosen kerning.
100..200
Tighten kerning.
Additional Information
A user defined kerning table is that which has been defined in a document but has not been built into a font.