RealMac Software has released iPhotoBatch 1.0 for Mac OS X and OS 8.1 or higher.
The application batch-converts folders of images in a seconds, the RealMac claims. The program has been designed with user-friendliness in mind.
Features include: batch conversion; open, view and convert single-images; conversion between JPG, GIF, TIFF, BMP and PNG image file-formats. The application also has a built-in image viewer.
IPhotoBatch costs $10 and is available for download from RealMac Software.