An image processing apparatus includes a processor that acquires document image data that is generated by reading an original document and recognizes character strings that are included in the document image data through character recognition, and the processor selects, as an issuing date of the original document, date information that includes time information from among a plurality of date information pieces in a case in which the plurality of date information pieces are extracted from among the character strings. The processor distinguishes a type of the original document on the basis of the document image data and selects date information as an issuing date of the original document from among the plurality of date information pieces in accordance with the type of the original document in a case in which no date information that includes time information has not been extracted.