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.
