Wolfgang Schuster schrieb:
Another solution for pdfTeX is to use \knbccode and \knaccode.
\pdfappendkern=1
\knbccode\font`a=125 \knaccode\font`a=125
...
A shorter version is:
\dostepwiserecurse{65}{122}{1}
{\knbccode\font#1=125 \knaccode\font#1=125 }
Wolfgang