The present invention relates to the expedient supply of differential
gloss or other correlation mark text into a document image via a font
definition, particularly as when desired in the employ of rendering
variable data. A font character is selected and sub-sampled. The
sub-sampled result is then scaled up into a full size result. A first
halftone cell having a first anisotropic structure orientation is
selected and applied to the full size scaled font result while a second
halftone cell having a second anisotropic structure orientation is
applied to the surrounding background around the full size scaled font
result to create a gloss font or other correlation mark character. This
full gloss font character or correlation mark character is then stored as
a font representation as callable by the digital front end of a printing
apparatus.