Abstract: A data communication apparatus and an electronic mail data producing method are provided that are capable of allowing a file name to be easily added to a file attached to an electronic mail and also allowing a file name to be added to a file attached to an electronic mail, which is commensurate with the contents of the date to be transmitted. A CPU of the data communication apparatus combines a page number allotted to each of the images converted into files with the subject of the electronic mail that is inputted, to generate an attached image file name, and transmits the electronic mail with the image data in the form of files attached thereto together with the generated attached image file names. Therefore, it is not necessary to input the name of an image file attached to an electronic mail, which facilitates the operation of transmitting an electronic mail and enables giving a file name that enables the receiver of the electronic mail to easily recognize the contents of the attached image file.

Abstract: An image processing apparatus and method is provided that enables the output of image data in a size suitable for a transmission method that is employed. If electronic mail data is transmitted by electronic mail, a CPU of the image processing apparatus converts read image data into an electronic image file while changing the width thereof according to a predetermined reading image width set by a scanner and transmits the image file as electronic mail data. If electronic image data is transmitted by color facsimile, the CPU provides control such that white pixels are added to the electronic mail data so that the width thereof can be equal to a predetermined image width. By thus changing the width of an image file to be transmitted as an attachment to an electronic mail according to a predetermined image width, an image properly laid out in a proper size can be reproduced at a facsimile receiving side and there is no unnecessary area when the image file is opened at the electronic mail receiving side.