An information processing apparatus connected to an image forming apparatus includes: a size detecting unit that detects a size of each page of a document to be printed; an orientation detecting unit that detects orientation of each page of the document; a receiving unit that receives a setting of post processing that is to be performed on a printed sheet on which the document is printed; a determining unit that determines whether pages of different sizes, both having one side of the same length and other sides of different lengths, are detected in the document; a rotation control unit that, when the determining unit determines that the pages of the different sizes have been detected, rotates pages so that sides of the same length are aligned on the basis of the setting of the post processing; and an output unit that outputs the document with the pages rotated.