Looking for direction and or help with injecting pdfs through exploits in older form plugins like Ninja Form.

Anyone can nudge me the right direction please? I know about the free method but I'm more interesting in the exploit version where you can inject your own pdf then index it, I am familliar with the list of exploits and have semi finished code for them, but I need someone who can help me make it production ready or is willing to sell me the software!