An image processing apparatus includes an image reading unit that reads an image, the image comprising an image printed on a printing sheet, and a first demarcation line added by a writing tool and demarcating a region of the image, a demarcation line extracting unit that extracts the first demarcation line from the image read by the image reading unit, and an image extracting unit that extracts the region of the image demarcated by the first demarcation line from the image as an extracted image.