I have free 2D ST8 and am using Windows 10.
Is it possible to import into the free 2D software, a .pdf file to use as a basis to produce a scalable 2D drawing? I looked at a post referring to Inkscape - the user was obviously an expert with the software (very quick actions) and as the language was not English, it did not help!
I assume all you want is to insert the bitmap as an image. If that is correct then there is a command called Image. Image takes the bitmap and puts it on the drawing as an image(picture).