The invention relates to a method for enhanced anti-forgery security of paper documents. A transfer foil or laminated foil that has a laser-sensitive layer is placed on the paper document for said purpose. The multilayer body is then treated with laser radiation. A laser-induced marking is produced in the laser-sensitive layer, e.g. by means of laser-induced bleaching, laser-induced color change or laser-induced blackening. Said laser-induced marking makes it possible to individualize the document.