a website with a PDF to PRC converter

I need a development of an easy to use, upload-and-click online file converter application and website. the website visitor is to hit browse and upload any PDF file from his PC and then provide his email address. the application is to convert this file to a PRC file readable on every Kindle, Palm, Blackberry, Hanlin, or similar mobile device. the converted file will be sent in PRC format (free of charge) to the users email. you may use free source application, but in that case please provide legal proof that is available for all types of use! the website design is a 1 page, user focused and streight forward one, resembling this link [login to view URL] please give me your time estimate for this work.