JPEG4Web makes getting your images ready for Email or web-sharing a snap. Just drag a folder of images (pretty much any common format) to the JPEG4Web window, and set your size and compression (JPEG4Web will give you a live preview of the output) and click Export!
lets you crop, resize, compress, and save JPEGs for use on the Web. Drag and image file to the editor window or the application icon in the Dock. Resize and compress the image using the sliders. Select an area and click on the Crop
tool. Click Save
and you are ready to upload! Adding a watermark and batch processing capable.