I have a few PDFs from various customers/vendors. My goal is that I am building a web app where a potential customer fills out a single form of data and then can generate all of the PDF's to print and sign.

The PDF's have fields in them that in adobe reader you can click and type in the data. However, this is sensitive financial data, and the PDF won't let you save to your desktop. There is actually a warning in adobe reader when you open the pdf and it prevents you from saving a completed form. I don't care about this feature. My users can save it if they want to take the risk if it becomes opened up when I generate the completed pdf myself.

The problem is that I need to generate these pdfs with my data injected into them without altering the style. I want to avoid manually building them, but I will if I have to. How can I generate the exact PDF format they gave me with the data filled in?