- PPG is resizable to automatically fit browser windows; - Works with categories; - XML driven, and then easy to update; - Powerful full screen ZOOM; - You can also use PPG as a Slideshow by pressing the play button; - Every image can have its own caption stored in XML file; - For easy of use you can set THUMBMODE switch: PPG will make and display thumbs images for you; - Images AUTOSIZING to fit viewer windows. You don't have to resize your images. PPG does this for you, so every image in gallery will be adapted to viewer window size with the correct proportion scaling; - PPG uses a clean preloader with percent both for images and thumbnails; - PPG comes with a stylish interface but you can modify it by work on assets in the library; - Full commented code!