Yes, on one hand, cadwork is paid, and on the other hand, even if downloaded, it would be of no use to you, because once the program is installed on your computer, you will still need a usage key that must always be on your machine, and furthermore, the cadwork company communicates a code as long as a Goncourt prize in order to be able to use it...
Let’s just say it’s a lot, a lot, a lot of time to spend for barely touching the hope of being able to use it without buying it... (not crazy these little Swiss...)