I downloaded the "free demo" from the developer's site. As soon as I launch it, I was prompted for a registration code, and could not progress further. I wrote to support and they replied "If you would like to order the program, please go to Help / Ordering Information at the main menu." I replied that I couldn't even launch the demo to find out if I want to purchase it. To that they replied "Unfortunately this is a limitation of the trial version or unregistered one
does not allow you to save a corrected file."

Doesn't seem to be anyone there that reads the English language.