Fotosizer is a freeware batch image conversion utility which is extremely easy to use: convert a ton of images in just 3 quick and easy steps. A review of Fotosizer has also been published.
Download Fotosizer 3.17.2.584 (from Image Conversion)1.84 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XP | Free