A print medium of the present invention has a structure in which a substrate 30 has an extending portion 10b extending from the portion fixed to a lenticular sheet 10a to the right in the drawing and adjacent to the rectangular lenticular sheet 10a. Printing "parallactic images", "an addressee", and "a fold" on an ink permeating layer 50, a print paper 60, and the ink permeating layer 50 of the print medium 10, respectively, and folding the extending portion 10b with respect to the "fold" facilitates bonding the portion on which the addressee is printed to the back surface of the lenticular sheet 10a.