Photopus Pro - Photopus Pro is an easy to use batch image processing to simplify the process to convert, add watermarks (text and image), resize, transform, touch-up, rename, and apply effects to your digital images.
GraphicConverter - Graphic Converter for Mac and Windows, can converts image formats BMP, JPG, GIF, ICO, PNG, TIF...
Online Image Converter - Online Image Converter converts your BMP, JPG, PNG, GIF or ICO files quickly and easily.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
XnConvert - XnConvert is an easy image converter for graphic files, photos and images available on Windows...
PhotoSize.net - Free online image converter and editor. Convert, Resize, Crop, Rotate, Touch-Up, and Apply Effects to images easily and without the need to install a software program!