Identification document having a personalized visual identifier and method for production thereof

A method for manufacturing an identification document comprising a first visual marking and a second visual marking, comprising the steps in which:

• by means of a first laser beam, the identification document is irradiated in such a way that material transformations are effected that induce local darkenings of the optical impression of the identification document, the local darkenings of the optical impression of the identification document making the first visual marking of a personalized first visual marking on the identification document visible, and
• by means of a second laser beam, the identification document is irradiated in such a way that material transformations are effected that induce local lightenings of the optical impression of the identification document, the local lightenings of the optical impression of the identification document making visible on the identification document a second visual marking that produces the optical impression of a copy of the first visual marking, wherein the copy is a positive image of the first visual marking;
• wherein the second visual marking is arranged in a second region of the identification document, wherein the second region comprises an ink whose color changes upon the action of laser radiation, and whereupon irradiation of the identification document by means of the second laser beam, local color transformations from a dark color to a light color are effected in the ink.