A printing apparatus includes a head capable of discharging liquids toward a medium. The liquids include a colored ink and a functional liquid that promotes penetration of the colored ink. The printing apparatus has a normal mode to print a front face of the medium with the colored ink, and a bleed-through mode to print the front and reverse of the medium by printing the front face of the medium with the colored ink and using the functional liquid to cause the discharged colored ink to penetrate toward the reverse face of the medium. When printing in the normal mode, the colored ink and the functional liquid are used for forming regions having a specific lightness or greater.