1. A document scanning system, comprising: a lighting unit for illuminating a document, the lighting unit comprising: a first light illuminating the document from a first direction; and a second light concurrently illuminating the document from a second direction distinct from the first direction, wherein the first light and the second light are oriented such that light from one of the first light and the second light reflects toward a camera and light from the other of the first light and the second light reflects away from the camera; a lighting unit polarizer attached to one of the first and second lights of the lighting unit to polarize light from the one of the first and second lights of the lighting unit; the camera for capturing images of the document; a cradle for supporting the document in a fixed position relative to the camera to orient one of a plurality of pages of the document relative to the camera; and a camera polarizer attached to the camera.