Abstract: The present invention is an apparatus for identifying dental x-ray films that allows a health practitioner or staff member to permanently emboss indentifying indicia directly on to a patient's x-ray films. The device is portable and lightweight. Constructed from a plastic or PVC material, it is impervious to x-ray film fixer or developer, as well as the emulsion used on x-ray film. The device is unique in that it neither etches nor destroys the emulsion on the x-ray film.