1. A method for providing actual scale information of a digital image, comprising: digitizing a paper document using a digitizing device to create a digital image; recording scale information associated with the paper document and the digitizing device; associating the digital image and the scale information; storing the digital image and the associated scale information; and providing a digital image viewer for, rendering the digital image, receiving drawing input from a user comprising a line or a shape, calculating a true scale measurement of the drawn line or shape based at least in part on the scale information, and presenting the true scale measurement to the user via the viewer.