The medium feeding device includes a skew correction mechanism including a first lever member and a second lever member displaceable between an advanced position contactable with a document and a retracted position retracted from a transport path, and a first load member and a second load member displaceable between a blocking position at which a part of the transport path in a width direction is blocked and an opening position at which the transport path is opened without being blocked, and the first load member and the second load member overlap at least a part of a transport roller when seen in the width direction when they are located at the blocking position.

The pinch roller mechanism comprises: a slider which is supported by a rail movably in a left-right direction; a roller support member which moves in an up-down direction while being supported by the slider, and a pinch roller which is rotatably supported by the roller support member. The slider includes a window that exposes the pinch roller diagonally upward on the upstream side in the conveyance direction.