A method for processing an image of a physical document to enable digital searching of the physical document includes: obtaining a digital copy of the physical document; receiving an instruction to search for a point of interest in the physical document; imaging the physical document and determining that the point of interest is on a surface of the physical document; and projecting, using a projector and onto the surface of the physical document, a visual-aid component that physically overlaps with the point of interest to highlight the point of interest on the surface of the physical document.