An image reading apparatus has a reader to read document images and has a stationary image reading position. A transporter transports a document at constant speed onto the image reading position. The transporter includes a guide member and a transport member. The guide member guides document transport and is provided adjacent to the upstream side of the document reading position in the direction of document transport by the transporter. The transport member transports a document with gripping between the guide member and itself. The transport member is provided above the guide member.