I have Qcad and it has a pdf export. My drawings don't fit on a pdf document. I'd have to scale them down to fit, I think. Changing the dimensions of something that is exactly the right dimensions just to have to put it back again without making any mistakes, is not the most desirable option. Especially considering how often I would have to do it. I already have other software that will import 2D cad data and allow me to make something 3D (Vectric Aspire.) But I was very impressed with the tutorial videos for Moi and want to add it to my collection. But the ability to start with 2D cad data is fundamental from my perspective.