PDF Converter
Plutext’s high fidelity PDF Converter is a standalone product (completely separate from docx4j), for converting doc/docx files to PDF.
It uses its own layout engine, designed to closely mimic Word’s.
As such, it is easily invoked from most programming languages, including Java, C#, PHP and Python.
To try it, get pricing, or download an installer, please go to converter-eval.plutext.com