An image processing system combining images includes: a first communication terminal device (e.g., cellular phone) issuing a request for image composition and notifying address information of an acceptor of image provision; a second communication terminal device accepting the request of the image provision and transmitting an image (e g., cellular phone); and an image processing server receiving the request for the image composition from the first communication terminal device to register the notified address information, transmitting an inquiry about the image provision to the second communication terminal device with the use of the address information, receiving images and image control information transmitted from the communication terminal devices, creating a composite image with the use of the images, and adjusting the composite image based on the image control information.