In a system and method for processing images, a double-sided image format is set, and a new file with the double-sided image format is established. Specific content identifying the double-sided image format is written into a name domain of the new file, and data of a first image file is written as front image data into a data domain of the new file. The system further writes data of a second image file as back image data into the data domain after the front image data. Memory position of the front image data in the new file may be written into a front description domain of the new file according to a first byte number of the front image data. Memory position of the back image data may be written into a back description domain according to a second byte number of the back image data.