You probably don’t aware or notice that rotating photos which are saved in JPEG format by using Windows XP’s Picture and Fax Viewer, Windows Vista’s Photo Gallery, Windows 7’s Photo Viewer or even Photoshop can degrade image quality. Although it is hard to differentiate by naked eye, but if you compare the image size before and after they are rotated, obviously you will notice that the image size has been reduced. Most of other image formats will not have this problem but unfortunately JPEG is one of the formats which have been identified to affect original quality each time it is rotated. When rotating JPEG image, it will be decoded to bitmap format, then rotate and re-encode it back to JPEG and all this conversion process has impacted the final quality you will never able to recover it back. To avoid such problem, now there is a tool, named as JPEG Lossless Rotator that is able to rotate photo without causing any quality degradation on JPEG images.
JPEG Lossless Rotator is a freeware that can be used to rotate photos while maintaining its original image quality. With the special lossless block transformation and without decoding and encoding process like other tool, it has able to eliminate the degradation, making it a good utility suitable for all usages. Featured with simple and user friendly interface, it allows a quick start and familiarization without lengthy learning curve. Just browse to the destination folder and all photos will be displayed in thumbnails view. Besides, the photos stored in sub-folders will be displayed as well if the ‘Include subfolders’ checkbox is ticked. Like usual, users can choose to rotate photos to left, right or 180 degree. Other additional features including Favorites keeping the 10 last folder shortcuts, Automatic finds and rotates images to normal orientation automatically, View Image opens image in the default viewer, Delete deletes the image and Display EXIF shows EXIF information of the image.
JPEG Lossless Rotator 6.4 is absolutely free for download and is compatible to run on Windows 98/ME/NT/2000/XP 32 bit & 64 bit/Server 2003, Vista 32 bit & 64 bit/Server 2008. It comes with both installer and portable package and the Installer package will have Integrated JPEG Lossless Rotator with shell that allows you to rotate image via Windows Explorer right click context menu.