Identification document with an improved anti-counterfeiting element

An identification document comprising

• a translucent portion having a first side and a second side, the translucent portion comprising a first personalized information, the first personalized information comprising a second personalized information which is hidden in the first personalized information when viewed from the first side of the translucent portion;
• and
• a filtering device attached to or formed in the second side of the translucent portion, the filtering device being configured to reveal the hidden second personalized information,
• wherein the second personalized information appears superimposed onto the first personalized information when viewed from the second side of the translucent portion, and
• wherein the second personalized information remains hidden when viewed from the first side of the translucent portion.

A method for manufacturing an identification document comprising a translucent portion having a first side and a second side, the translucent portion comprising a first personalized information, the method comprising:

• processing an image, the image comprising the first personalized information together with a second personalized information inserted and hidden in the first personalized information;
• inserting the processed image either into a thickness of the translucent portion or onto a surface of the first side of the translucent portion;
• and
• providing a filtering device in or on the second side of the translucent portion such that the filtering device faces the processed image through the thickness of the translucent portion, the second personalized information appearing superimposed onto the first personalized information when viewed from the second side of the translucent portion, and the second personalized information remaining hidden and only the first personalized information appearing when viewed from the first side of the translucent portion.