1. A digital imaging and document verification system comprising: imaging sensors to capture images of a modified physical document, the modified physical document being indicative of a physical document that is physically modified; a data storage device to store the digital images of the modified physical document and modification guideline instructions for a user to modify physical documents by tearing, cutting, or folding; and a digital image processing circuit to: measure pixel parameters of pixels of a plurality of regions of the stored digital images of the modified physical document, wherein the pixel parameters include variations of pixel intensities in at least one of the plurality of regions including tearing, cutting, or folding; determine, from the measured pixel parameters of the stored digital images of the modified physical document, whether the modified physical document captured in digital images is an actual physical document or a fake document via the measured pixel parameters associated with tearing, cutting or folding; determine, when the modified physical document is determined to be an actual physical document, from the measured pixel parameters of the stored digital images of the modified physical document, whether the modified physical document includes characteristics that conform to a predetermined verification pattern, the predetermined verification pattern indicative of the modified physical document being physically modified according to predetermined document modification guidelines, and the predetermined document modification guidelines comprising: the modification guideline instructions that specify how to physically modify the physical document via tearing, cutting, or folding of the document; and verify the document if the modified physical document includes characteristics that conform to the predetermined verification pattern.