Signature Panel for ID Documents and Payment Cards

An identification document includes a card structure including a plastic material, a surface of the card structure including a first surface region that includes a plurality of depressions formed in the surface according to a predefined pattern; and a second surface region that includes a majority of a surface area of the identification document, wherein the second surface region is non-porous. A surface energy of the surface in the first surface region is greater than a surface energy of the surface in the second surface region.