1. An image processing apparatus, comprising: a first input section, arranged to input image data; an extractor, arranged to extract, from the image data, pointer information for specifying a storage location of original data of the image data and image process information representing whether the image data is attained as a result of an image process on the original data; an obtainer, arranged to obtain selection information representing which of the image data and the original data is used; a converter, arranged to convert the image data into vector data in a case where no pointer information is extracted, in a case where the image process information represents that no process has been done, or in a case where the selection information represents use of the image data; a second input section, arranged to input the original data on the basis of the pointer information in a case where the pointer information is extracted, the image process information represents that the process has been done, and the selection information represents use of the original data; and an image processor, arranged to form an image on the basis of the vector data or the original data.