ImageBatch is a free lightweight batch converter for images, based on LibGD graphic library. Currently supported image formats are JPEG, PNG and GIF.
With ImageBatch you can resize, crop, rotate, flip your images and draw watermarks on them. Watermarks could be based on user text or user image.
ImageBatch is expected to work under any Windows platform, starting from Windows 95. Installation is not required.
That's how ImageBatch look like. Really easy to use: you just choose working directory, filetypes, setup operation setttings and press "Start" then. After that, execution process could be stopped at any time, using "Stop" button of progress dialog.