Information processing apparatus, image forming apparatus, and storage medium that enable printing while receiving random access document file

An image forming apparatus, comprising:

• a storage;
• and
• a processor programmed to execute a first process including
• obtaining multiple sets of page data of pages that are randomly arranged,
• encrypting the sets of the page data,
• rearranging the sets of the encrypted page data in page order,
• attaching identification information for identifying a page data boundary to an end of each of the rearranged sets of the encrypted page data, and
• generating a document file including the rearranged sets of the encrypted page data and the decoding information such that the decoding information is disposed in front of all of the rearranged sets of the encrypted page data,
• wherein the processor is programmed to also execute a second process including
• obtaining the decoding information from the document file and storing the obtained decoding information in the storage,
• sequentially decoding the rearranged sets of the encrypted page data included in the document file by using the decoding information stored in the storage, and
• printing the rearranged sets of the page data decoded by the decoding.

A non-transitory computer-readable storage medium storing a program for causing a computer communicating with an image forming apparatus to execute a process, the process comprising:

• receiving a first document file in which multiple sets of encrypted page data of pages are randomly arranged;
• rearranging the sets of the encrypted page data in page order;
• attaching identification information for identifying a page data boundary to an end of each of the rearranged sets of the encrypted page data;
• obtaining decoding information for decoding the sets of the encrypted page data from the first document file;
• generating a second document file including the rearranged sets of the encrypted page data and the decoding information such that the decoding information is disposed in front of all of the rearranged sets of the encrypted page data;
• and
• transmitting the generated second document file to the image forming apparatus.