1. A digital camera that picks up an image of a document and displays the image of the document as a frame image on an image monitor, the camera comprising: means for identifying an area of the document in the frame image; first control means for automatically adjusting an image pickup direction of the camera, by correcting a direction of an image pickup lens of an optical system of the camera, based on deflection directions and values of the identified area of the document with respect to a center of the frame image; and second control means for automatically driving the optical system to control an image pickup magnification of the optical system and thereby control a size of the image of the document to be picked up; wherein the deflection directions and values are obtained by comparing a center of the identified area of the document with the center of the frame image.