Java pdf generation

You already have the HTML. The Java service is in place. The product team assumes PDF output is a solved problem. Then the significant issues show up. Your invoice breaks a table across two pages. The exported report drops a custom font. A dashboard rendered by client-side code turns into a blank page. The PDF looks fine in one sample file and falls apart in the first real customer document. That's the normal starting point for HTML to PDF in Java. The hard part isn't getting a PDF. It