Image forming apparatus, method of controlling the same, and storage medium configured to accept a user operation for deleting a page form a print job, to delete a rendering command for that page, and to update identification information of the print job based on the deleted page

Abstract

A printing apparatus predicts a processing time of rendering processing for each page of a print job, determines one or more pages for which page image data is to be generated in advance based on the predicted processing time, generates the page image data corresponding to the determined one or more pages, and stores correspondence information in association with the print job, the correspondence information associating the generated page image data with identification information identifying a location of a page. In response to accepting a user operation for deleting one or more specified pages from the print job, the printing apparatus deletes a rendering command for constructing the one or more specified pages from the print job, and updates the identification information included in the correspondence information based on the one or more specified pages.