Rotate your digital photos without loss of quality. To achieve large compression ratios (about 1/5 to 1/50), the JPEG format uses a lossy compression method. Therefore once an image has been saved (compressed) to JPEG, it is not possible to restore the original image quality and every time you change and save the file, more quality is lost due to recompresssion. Rotating a JPEG image usually takes 3 steps: de-compress JPEG to bitmap, rotate bitmap, re-compress bitmap to JPEG. This re-compression process causes additional loss of image quality. Loss-less JPEG Rotation doesn t de-compress a JPEG image completely and moves intermediate data from-to rotate 90/180/270 degrees position. It doesn t cause loss of image quality and your picture can be rotated without compromise.
