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. 8. The information processing apparatus according to claim 7 , wherein the at least one processor and the at least one memory further operate to calculate a number of pages required to generate the temporary display document from print setting information included in the print document, and wherein the at least one processor and the at least one memory generate the temporary display document corresponding to the number of pages calculated by the at least one processor and the at least one memory based on the print data of the parts of the print document corresponding to the number of pages calculated by the at least one processor and the at least one memory.