Rota is simple and easy to use loss-less rotation utility for JPEG image. Includes complete source code for Borland C++Builder5. To get large compression ratio (about 1/5 to 1/50), JPEG uses lossy compression method. Therefore once image has been compressed to JPEG, it is not possible to retrieve original image from it. If you take a picture of some guy by vertical camera position, maybe you'd like to rotate image to stand it upright. In usual, it takes 3 steps to rotate JPEG image: de-compress JPEG to bitmap, rotate bitmap, re-compress bitmap to JPEG. This re-compress process cause additional loss of image quality.