Originally posted in cdnusers.org by andrewjw
The only options you have here is to play with the FixedFigureHeight entry in the drill template (.dlt file - normally found in $CDSROOT\share\pcb\text\nclegend).
"; A non-zero FixedFigureHeight will force ALL(!) figures displayed
; in the "Figure" column to be displayed with the same specified
; height, overriding what is defined in individual padstacks. The
; setting of 0 included below indicates that they will be displayed
; with the sizes as defined in the padstacks."
I've used this before to reduce the size of the drill chart - apart from that the only other option is manually editing it.