The present disclosure relates to a method for printing a secure image on
media using an inkjet printing device. The method includes printing an
underlayer using an inkjet printing device that penetrates into a front
surface of media. The underlayer is configured to define identification
indicia. Included in the method is printing a secure image on top of the
underlayer using an inkjet printing device. Examination of a back surface
opposite the front surface allows viewing of the identification indicia
for authenticating the secure image.