Method for the holographic marking of a composite body for a security document, comprising the steps: providing or producing the composite body, which comprises a hologram layer which is photosensitive in at least one region; arranging the composite body in a cut-out opening of a retainer, wherein the retainer comprises a flat contact surface with the cut-out opening, which is adjusted to the shape of the composite body, and wherein a contact plate is arranged in the cut-out opening with a contact surface for a rear side of the composite body; exposing the composite body to coherent light that interferes in the photosensitive region of the photosensitive layer, in order to record by exposure holographic information in the region of the photosensitive hologram layer; Fixing the hologram recorded by exposure in the photosensitive hologram layer, wherein a master in the form of a film is brought into contact, by means of a master application device, with a front side of the composite body arranged in the cut-out opening of the retainer, in which the master configured as a film is unrolled by a roller over the composite body, wherein the master comprises at least one structure which influences the light propagation, and the at least one structure influencing the light propagation is copied as a contact copy on exposure into the photosensitive region of the hologram layer, and wherein the composite body is produced or provided in such a way that the composite body is transparent in a section of the photosensitive region of the hologram layer to at least one wavelength of the coherent light, and the exposure of the composite body with the coherent light of this wavelength takes place through the rear side of the composite body in the section of the photosensitive region and through the contact plate of the retainer, which is turned away from the front side of the composite body, onto which the master is applied, and at which the light of at least the one wavelength is thrown back at the at least one structure influencing the light propagation, and then interferes with itself in the photosensitive region of the hologram layer, in order to expose the holographic information in the hologram layer, wherein the contact plate exhibits in its contact surface a cut-out opening penetrating through the contact plate, or is transparent at least over part of its surface for the at least one wavelength of the coherent light which is provided by the exposure device for the exposure. providing or producing the composite body, which comprises a hologram layer which is photosensitive in at least one region; arranging the composite body in a cut-out opening of a retainer, wherein the retainer comprises a flat contact surface with the cut-out opening, which is adjusted to the shape of the composite body, and wherein a contact plate is arranged in the cut-out opening with a contact surface for a rear side of the composite body; exposing the composite body to coherent light that interferes in the photosensitive region of the photosensitive layer, in order to record by exposure holographic information in the region of the photosensitive hologram layer; Fixing the hologram recorded by exposure in the photosensitive hologram layer, wherein a master in the form of a film is brought into contact, by means of a master application device, with a front side of the composite body arranged in the cut-out opening of the retainer, in which the master configured as a film is unrolled by a roller over the composite body, wherein the master comprises at least one structure which influences the light propagation, and the at least one structure influencing the light propagation is copied as a contact copy on exposure into the photosensitive region of the hologram layer, and wherein the composite body is produced or provided in such a way that the composite body is transparent in a section of the photosensitive region of the hologram layer to at least one wavelength of the coherent light, and the exposure of the composite body with the coherent light of this wavelength takes place through the rear side of the composite body in the section of the photosensitive region and through the contact plate of the retainer, which is turned away from the front side of the composite body, onto which the master is applied, and at which the light of at least the one wavelength is thrown back at the at least one structure influencing the light propagation, and then interferes with itself in the photosensitive region of the hologram layer, in order to expose the holographic information in the hologram layer, wherein the contact plate exhibits in its contact surface a cut-out opening penetrating through the contact plate, or is transparent at least over part of its surface for the at least one wavelength of the coherent light which is provided by the exposure device for the exposure.