[danielstudds]

PDF generation is a complex business... you're not going to be all things to all people, you need to choose a particular niche (at least to start with) and make that work. I can see the value prop in report generation on SF. "PDF Generation for developers" is too broad: I don't think you can do it (because there are so many different types of of PDFs to generate) and I can't see the value prop (because it's going to cost you more to provide a generic PDF generation service than it will cost me to use an existing library.)

That said, there might be a market there for developers, but you'll need to identify a very particular challenge that devs have and provide a much better solution than what they can achieve with a library in a day.