Image Module
The image module manages different types of bitmap images, and lets you open them in FreeCAD. Currently, the modules lets you open .bmp, .jpg, .png and .xpm file formats in a separate viewer window.
The image workbenches also allow to open an image on a plane in the 3D-space of FreeCAD. This function is available via the second button of the image workbench. 
The plane can be moved in 3D-space by editing the placement in the Property editor. The major use is tracing over the image, in order to generate a new part at using the image as template.
