Yes, one of the best known is the open source programme "FreeCAD". With FreeCAD you can create both 2D and 3D drawings. It is customisable, scriptable and extensible. With its extensive features, it is suitable for hobbyists/makers, experienced CAD users and also educators. For an introduction to FreeCAD we recommend our book: "FreeCAD – 2D/3D Konstruktion – Das Einsteigerseminar".

Yes, and even as a free open source programme - Scribus. Scribus is a powerful DTP programme that is constantly being developed. It also offers a lot of templates that can be easily adapted to personal needs. For example, standard formats such as A4, A6 flyers, wrap or zigzag folds can be used directly. With the professional colour management, the finished layouts can be sent in CMYK colours to any print shop for further processing without any problems. Special colours can also be individually controlled with Scribus. Scribus can be downloaded via the following link: https://www.scribus.net/downloads/ Don't be put off by [...]

CAD stands for Computer Aided Design. The user will be supported in his work by autmatized processes. The most well-known CAD program is likely to be AutoDesk CAD.