An image processor includes an image process section, an image log application, and a platform. The image process section processes an image. The image log application acquires an image log serving as a log of the image processed by the image process section. The platform operates applications including the image log application. The platform provides the image log application with an image log API for acquiring the image log, and also the image log application provides the application with a service executed by using the image log API. According to the above mode, application programs using image logs can be easily added, and the problem of low security caused by addition of the application programs using image logs can be prevented.