Image Resizing Class is a PHP class that can be used to resize images while preserving their aspect ratio. It can open a JPEG, PNG, or GIF image and resize it in such way that neither the width nor the height exceed given size limits. The image is resized to preserve the original proportion between the width and height. The resized image is generated in the JPEG format, overwriting the original image file.
The XML Flash Slideshow Creator Extension for Dreamweaver allows you to easily create Flash slideshows in Dreamweaver MX or MX 2004. You can load any JPEG images of any size and any quality. With the easy-to-use Insertion Wizard, all you have to do is enter in the parameters and let the wizard create the slideshow. The editing wizard makes changes easy.
ImaginView Photo Gallery Class is a class for creating photo galleries. It features automatic thumbnail generation/caching, is recursive, and supports JPEG and PNG (and GIF, if your GDlib has GIF support). It's template-based, making customization easy, and it uses footers/headers in txt/html/php format.