An image reading apparatus includes a transparent member including a document placing surface on which a document is placed, a document pressing portion that presses the document placed on the transparent member against the transparent member, a pivot supporting portion that pivotably supports the document pressing portion so as to be pivotable about a pivot shaft with respect to a casing of the image reading apparatus, an image reading unit, an abutment portion against which an edge portion of the document placed on the document placing surface is abutted in order to position the document at a reference position, and an inclined surface. The abutment portion is provided at one portion of a front end on a side far from the pivot supporting portion. The inclined surface is provided at another portion of the front end and inclined upward toward the side far from the pivot supporting portion.

An image reading apparatus includes a transparent member including a document placing surface on which a document is placed, a document pressing portion that presses the document placed on the transparent member against the transparent member, a pivot supporting portion that pivotably supports the document pressing portion so as to be pivotable about a pivot shaft with respect to a casing of the image reading apparatus, an image reading unit, an abutment portion against which an edge portion of the document placed on the document placing surface is abutted in order to position the document at a reference position, and an inclined surface. The abutment portion is provided at one portion of a front end on a side far from the pivot supporting portion. The inclined surface is provided at another portion of the front end and inclined upward toward the side far from the pivot supporting portion.