The present invention provides a durable and self-verifying secure
document system and a method for its production, wherein counterfeiting
is prevented. The secure document system is potentially useful for a wide
variety of documents including, but not limited to, lottery tickets,
currency, traveler's checks, passports, stock and bond certificates, bank
notes, driver's licenses, wills, coupons, rebates, contracts, food
stamps, magnetic stripes, test answer forms, invoices, tickets, inventory
forms, tags, labels and original artwork. The instant invention provides
a plastic paper substitute having various indicia associated therewith
including visible and hidden indicia. Application of the hidden indicia
to the plastic paper substitute is implemented in accordance with a
computer software program, and the document includes an integral lens
area which is particularly designed to verify the document's authenticity
by rendering the hidden indicia visible to the viewer. The instant
invention is particularly durable when produced on one of the modern
plastic paper substitutes.