You can export your mockup or prototype to images, PDF or DHTML via the buttons in the tool bar:
Can export current page or all pages to image files. So far the PNG, JPG and BMP formats are supported.
Can export all pages to a single PDF file. The page note will become the foot note for each page.
Can export the whole prototype to DHTML (several files in a folder). All behavior will be converted to Javascript, and you can run your prototype in web browser and really interact with it.