A device for producing a data card for a book-like identification, value or security document , wherein the identification, value or security document has a cover and a passport book block comprising a data card , a plurality of double pages , an endsheet and a spine tape , wherein the data card has a flexible tab connected to the data card along an edge, wherein the data card with the flexible tab , the double pages , the endsheet and the spine tape are sewn together by means of a stitching , and wherein an inner side of the cover is bonded flat to an outer side of the endsheet , wherein the device has the following: - a processing unit , wherein the processing unit has a holder for the data card and means for connecting the tab and the data card in a form-fitting and/or integrally bonded manner in an overlap region so that the tab applied to the data card protrudes beyond the surface of the data card , and - a provisioning unit for the tab , wherein the provisioning unit has a ∘ feed arrangement for an endless strip for the tab , ∘ a cutting arrangement for the endless strip , and ∘ a holding and transporting device for the tab , wherein the holding and transporting device is designed to hold a longitudinal edge of the tab and to transport the tab to the holder for the data card , characterised in that the device also comprises: ∘ means for sealing the edges of the tab , wherein the means for sealing the edges comprise, in particular, a sonotrode for an ultrasonic welding process, wherein the cutting arrangement , in the production flow, is arranged after the means for sealing the edges of the tab . - a processing unit , wherein the processing unit has a holder for the data card and means for connecting the tab and the data card in a form-fitting and/or integrally bonded manner in an overlap region so that the tab applied to the data card protrudes beyond the surface of the data card , and - a provisioning unit for the tab , wherein the provisioning unit has a ∘ feed arrangement for an endless strip for the tab , ∘ a cutting arrangement for the endless strip , and ∘ a holding and transporting device for the tab , wherein the holding and transporting device is designed to hold a longitudinal edge of the tab and to transport the tab to the holder for the data card , characterised in that the device also comprises: ∘ means for sealing the edges of the tab , wherein the means for sealing the edges comprise, in particular, a sonotrode for an ultrasonic welding process, wherein the cutting arrangement , in the production flow, is arranged after the means for sealing the edges of the tab . ∘ feed arrangement for an endless strip for the tab , ∘ a cutting arrangement for the endless strip , and ∘ a holding and transporting device for the tab , wherein the holding and transporting device is designed to hold a longitudinal edge of the tab and to transport the tab to the holder for the data card , characterised in that the device also comprises: ∘ means for sealing the edges of the tab , wherein the means for sealing the edges comprise, in particular, a sonotrode for an ultrasonic welding process, wherein the cutting arrangement , in the production flow, is arranged after the means for sealing the edges of the tab . <EOS>