In accordance with the present invention, an operating procedure of a scanning system that can get images automatically is disclosed. The operating procedure comprises steps of scanning at least one original to get an image which can display all content of this original, displaying the image, receiving a portion of image that selected by the user, and outputting the selected image. The present invention can also extend to a scanning method for using a scanning system with one-scan-and-done feature and free of identifying original's attribute feature. And a scanning system with one-scan-and-done feature and free of identifying original's attribute feature.