FreeCAD is a 3D CAD package.
LibreCAD is based on QCAD but provides a more modern interface.
QCAD and LibreCAD are a cross-platform 2D CAD packages.
As well as animation, Blender can be used for 3D modelling. Models created in Blender can be used for 3D printing.
Scribus is a cross-platform Desktop Publishing application. As well as typesetting, a range of standard image formats are supported, as are Adobe Photoshop and Illustrator […]