An image processing apparatus having a display device displaying a background image and a stroke image superimposed on the background image, the stroke image reproducing a stroke which is drawn by an input operation of a user, includes a recording unit recording image data of the background image and stroke data, which are related to the stroke input by the input operation, into an electronic document; a read unit reading the electronic document; a display unit displaying the background image on the display device by using the image data of the background data, reproducing the stroke image by using the stroke data, and displaying the stroke image superimposed on the background image on the display device; and an edit unit editing the stroke data in accordance with the input operation.