An apparatus for reproducing an image file and outputting audio data related to the image file at the same time is provided. The apparatus includes an audio editor configured to edit audio data having a predetermined time length in order to create edited audio data, and an encoder in configured to encode image data and the audio data edited by the audio editor in order to create a live picture file, wherein the live picture file includes at least one of an image data area including the image data, additional data header area including information related to additional data including the audio data, and an audio data area including the edited audio data.