21. A method to embed a security feature into an identification document identifying a holder of the identification document, the method comprising: applying a laser beam on a portion of a metalized structure embedded within an identification document, the metalized structure comprising an opaque material and being embedded below an external surface of the identification document; removing metal from the portion of metalized structure in response to applying the laser beam; and creating a spatial pattern in the metalized structure by applying the laser beam to at least one more portion of the metalized structure, the created spatial pattern comprising one or more features that correspond to identification information associated with the holder of the identification document and visible from a front side and a rear side of the identification document.
21. A method to embed a security feature into an identification document identifying a holder of the identification document, the method comprising: applying a laser beam on a portion of a metalized structure embedded within an identification document, the metalized structure comprising an opaque material and being embedded below an external surface of the identification document; removing metal from the portion of metalized structure in response to applying the laser beam; and creating a spatial pattern in the metalized structure by applying the laser beam to at least one more portion of the metalized structure, the created spatial pattern comprising one or more features that correspond to identification information associated with the holder of the identification document and visible from a front side and a rear side of the identification document. 25. The method of claim 21 , wherein the metalized structure is one of a kinegram, a hologram, an exelgram, or a pixelgram.