A post-processing device includes a loading unit on which a sheet is loaded, a first transport unit configured to apply, to the sheet loaded on the loading unit, a transport force toward an alignment unit, a second transport unit located between the first transport unit and the alignment unit, and configured to apply, to the sheet, a transport force toward the alignment unit, a control unit configured to control rotation operation of the second transport unit, and a post-processing unit configured to perform post-processing on the sheet transported to the alignment unit, wherein the post-processing unit is configured to execute a plurality of types of the post-processing, and the control unit is configured to control the rotation operation of the second transport unit in accordance with the type of the post-processing.