fastImageResizer is a very useful tool which can help you to resize your images.
Multicore processor compatible
-Resize images to any size quickly and in high quality
-Create thumbnails for your website images
-Resize Algorithm quality and JPEG quality configurable
-Create resized files in new folder, or in the same folder as the source
-Use EXIF information to rotate your pictures to the correct orientation
-Copy EXIF info from source image