Custom Printing

[Shawn Tayler]

Hi Guys,

I have a need to be able to print some text onto the back of a 4x6in
post card.  Some of the text would be predefined, kind of a form with
data being added from perhaps another application or a text file of
sorts.  Anyway I'd like to be able to define the area on the back of the
card, say a 2-1/4x3-1/4in portion.

Would anyone have a recommendation on where to start looking?  I have a
basic knowledge of lprng but I am thinking perhaps a ghostscript type
app?  Suggestions?

Shawn