To provide a technology which facilitates positioning of a document to a document table even in a condition of a vertically placed image reading apparatus and by which operability was improved. It is configured in such a manner that, in case that a document cover 6 was opened to an apparatus main body 1 in the vertically placed condition,(a distance c between a document table glass 2 of an apparatus main body 1 and an end portion 57 of a lowermost portion of a press-contact sheet 8)<(a step (a height from the document table glass 2) d of a step 58a)is realized.