According to an aspect of the invention, an information processing apparatus includes a sub information providing unit, a sub information adding unit, and a display unit. The sub information providing unit gives, to a first electronic file including first main information, first sub information that is manipulatable independently from the first main information. The sub information adding unit adds a second sub information to the first electronic file, the first main information and a second main information being at least partially identical to each other. The display unit displays the first main information, the first additional information, and the second additional information which are included in the first electronic file.