An image reading apparatus includes: a scanner unit that scans a document including a plurality of pages and reads an image of each of the pages; an image processing unit that determines characteristics of each page of the read images and performs image processing in accordance with the characteristics; a display device that previews the processed image of each page; an operation detection device that accepts a setting of an extraction condition related to the characteristics; and a controller that extracts, based on the set extraction condition, and previews a read image of a page having determination accuracy pertaining to the characteristics below a predetermined standard among the images processed for each page.