A post-processing apparatus performs post-processing on a paper sheet conveyed from a previous stage side, and includes: a corrector that performs bend correction on the paper sheet, in accordance with one of a plurality of bend correction methods; a post-processor that performs the post-processing on the paper sheet subjected to the bend correction performed by the corrector; and a hardware processor that selects one of the plurality of bend correction methods, on the basis of a bend correction accuracy corresponding to a product to be created by the post-processing being performed by the post-processor, and a productivity of the product, wherein from the plurality of bend correction methods, the hardware processor selects a bend correction method that reduces a difference between a post-processing time required for the post-processor to perform the post-processing and a correction time required for the corrector to perform the bend correction on the paper sheet.