3D Issue Flipbooks is digital publishing software that lets you convert PDFs into flipbooks, digital publications, and more. With multiple output types including HTML5, Offline editions, epub, and Mobi, reach as many readers as possible on a wide array of devices. Provide additional user-facing features such as Search, Contents Menu, Text selection, Notes, Bookmarks, and much more. Automatically convert your PDFs using Flipbooks Hotfolder. Drop-in a PDF to convert and upload it automatically.