You may stumble upon legitimate-looking websites hosting "official giveaways" of HD Video Converter Factory Pro. While some of these are real (often promoted by the developer for marketing purposes), they come with caveats:
Once you have a license code, activation is a simple process: HD Video Converter Factory Pro License Key
The software typically follows these pricing structures (subject to change): WonderFox HD Video Converter Factory Pro - Dealarious Store and License Keys
HD Video Converter Factory Pro: Features, Pricing, and License Keys HD Video Converter Factory Pro License Key