18. The handheld mobile computing device of claim 17 , wherein the annotated version of the rendering includes a plurality of layers, the plurality of layers including the rendering of the document and one or more layers of the handwritten annotations made by the user via the handheld mobile computing device.
18. The handheld mobile computing device of claim 17 , wherein the annotated version of the rendering includes a plurality of layers, the plurality of layers including the rendering of the document and one or more layers of the handwritten annotations made by the user via the handheld mobile computing device. 19. The handheld mobile computing device of claim 18 , wherein the one or more layers of handwritten annotations are separated based on at least one of an annotation mode used by the user to make the handwritten annotations and a time at which the user made the handwritten annotations.