A document feeder to reverse a document by conveying the document to a reverse path. The document feeder includes a conveyance roller to convey the document, a reverse roller provided along a conveyance path of the document conveyed by the conveyance roller to convey the document to the reverse path by changing a direction of conveyance of the document, and a reverse roller control unit to control the reverse roller to correct skew of the document. The reverse roller control unit controls the reverse roller to correct the skew of the document by striking the document conveyed by the conveyance roller against a nip formed between the reverse roller and a roller provided opposite the reverse roller to temporarily bend the document.