An image reading apparatus includes an image reader, a document feeder, and a document retainer. A document feeder feeds the document to the image reader, and the image reader reads an image of a document. The document feeder discharges the document onto a stacker after the image of the document has been read. The document feeder is pivotal relative to the image reader. When the document feeder opens relative to the reader at an angle, the document retainer presses the document against the stacker.