Photo and Image Rotator For Lossless Rotation

Some of the best free image viewers I posted previously have actually provided this mechanism. But JPEG Lossless Rotator is excellent for rotating many JPEG images and photos at once quickly without any quality loss. Simple, faster, and, gratefully no installation required (if you choose the portable version).

Rotate images in Windows explorer with its optionally integrated shell, or rotate the contents of a whole photo folder including its entire subfolders through its main window. Automatically rotate photos based on EXIF information, or manually to the left, right, and 180 degrees at a press of a key. Be careful though, the output overwrites the original and there is no undo operation. Copy your original images so you won't lose them.

Images and photos can be rotated losslessly as long as their width and height (number of pixels) are divisible by 16. For example, photos with size 1600x1200, 1280x960, 1024x768, 800x600, 640x480, 320x240.

A message will pop out whenever a photo cannot be rotated fully losslessly, asking your confirmation for letting the program perform some slightly cropping to the photo to be able rotating it losslessly.

JPEG Lossless Rotator -- free, for Windows 98, ME, NT, 2000, XP, 2003, Vista.