Sometimes users will want to download photos from your Zoph site, maybe because they are on it or because they want to order a print. With Zoph they can download any set of photos, an album, all the photos with a certain person on it, search results, or a user's lightbox album, of course, only if you allow them to do so. The downloaded photos are packed together in a ZIP-file which can be unpacked on any OS and is accepted by most photolabs in case you want to order a print. You can set a maximum number of files in a ZIP and a maximum size for the ZIP-files, Zoph will automatically spread the files over the required number of ZIP-files. Bear in mind that you will probably need to adjust PHP's max_execution_time if you want to be able to download large ZIP files.