7. An information processing apparatus configured to display a main display document generated from print data of all parts of a print document, the information processing apparatus comprising: at least one processor and at least one memory coupled to each other and operating to: generate a temporary display document, to be displayed prior to the main display document, based on print data of at least one part fewer than all parts of the print document; display the generated temporary display document; determine whether all parts of the print document are acquired; when it is determined that the all parts of the print document are acquired, generate the main display document including all pages of the print document based on the print data of the acquired all parts of the print document; and change a display from the temporary display document to the main display document when the main display document is generated, wherein the at least one processor and the at least one memory further operate to: (i) determine whether to display the temporary display document according to an output status of the parts of the print document, (ii) determine whether all parts of the print document have already been output before generation of the temporary display document is completed, and (iii) determine that the temporary display document should not be displayed when it is determined that all parts of the print document have already been output before generation of the temporary display document is completed.
7. An information processing apparatus configured to display a main display document generated from print data of all parts of a print document, the information processing apparatus comprising: at least one processor and at least one memory coupled to each other and operating to: generate a temporary display document, to be displayed prior to the main display document, based on print data of at least one part fewer than all parts of the print document; display the generated temporary display document; determine whether all parts of the print document are acquired; when it is determined that the all parts of the print document are acquired, generate the main display document including all pages of the print document based on the print data of the acquired all parts of the print document; and change a display from the temporary display document to the main display document when the main display document is generated, wherein the at least one processor and the at least one memory further operate to: (i) determine whether to display the temporary display document according to an output status of the parts of the print document, (ii) determine whether all parts of the print document have already been output before generation of the temporary display document is completed, and (iii) determine that the temporary display document should not be displayed when it is determined that all parts of the print document have already been output before generation of the temporary display document is completed. 18. The information processing apparatus according to claim 7 , wherein, when the main display document is generated, the display is automatically changed from the temporary display document to the main display document.