An information processing apparatus for executing a plurality of information processing, the apparatus comprises device for storing format information about the contents of instructions to execute at least one of the plurality of information processes, function for printing the format information stored in the storing device and first code information for judging permission to execute the information processing on a sheet, function for reading the sheet printed by the printing function for inputting the contents of instructions required to be executed on the information processing apparatus, input function for inputting second code information when the reading function reads the sheet, function for collating the first code information printed on the sheet by the printing function with the second code information input by the input function, and function for permitting the execution of a process corresponding to the contents of instructions printed on the sheet read by the sheet reading function on the basis of the collation result at the collating function.