Method and apparatus for copying double-sided document

A method and apparatus for copying a double-sided document are provided to obtain a double-sided or one-sided copy by using a copying apparatus having a duplex automatic document feeder (DADF), in which an original document is scanned, an odd page image and an even page image of the scanned original document are displayed, an input selecting orientation of the even page image is received, and the odd page and the even page are printed according to the selected orientation. Therefore, when the double-sided or one-sided copy is made from the double-sided original document, the finished copy can be obtained without a reversed even page, thereby eliminating an inconvenience of arranging the page orientation of the finished copy. Further, consumption of paper or a cartridge can be reduced since the finished copy can be obtained without a reversed even page.