Fishing for Fool-User

The plugin is not a demo version. It is fully functional version.
You see a demo watermark because you used the demo API license.
If you activate any Pdfcrowd API v2 license and use the correct API key and username in the plugin settings, the demo watermark will not be displayed.

The trial API license may be activated by the following link:
— https://pdfcrowd.com/user/sign_up/?pid=api-trial2
The production API license may be activated by the following link:
— https://pdfcrowd.com/pricing/api/?api=v2