Online EBook Creator

I need an app that performs the following: A user uploads HTML, graphics, and/or text files to a website. The app then creates some form of EBook from the uploaded files. The completed ebooks may be in any compiled format you see fit - I would prefer PDF, but if you have an alternate solution, I'm game. These files must be able to run on a computer with no internet connectivity. I would prefer PDF so they may be run on both Mac and Win, but once again, I am open to your suggestions (Mac usability is not a requirement). The important thing is that it be compiled in some way - one file only. The app should retain the uploaded files for future use. You may use any tool in your arsenal to accomplish this task - PHP, ASP, COM DLLs, VB WebClasses, Java - your choice. ## Deliverables Scripts, DLLs, whatever you end up creating. Source code, ownership rights, troubleshooting and debugging assistance. ## Deadline information Time is not crucial, but please include some sort of time estimate along with your bid. The selected coder will be expected to sign a non-disclosure agreement, as in-depth details are discussed. I would prefer someone who is willing and able to maintain a long-term business relationship.