Convert pdf to sketchup

[maxB]

instead of Illustrator you can also use the open source Inkscape;

• open pdf in Inkscape
• export to dxf (only vectors will be exported, not images)
• import in SU Pro

Edit: for jpgs - here is an old thread discussing tracing images. Maybe some of it will apply:

Creating lines from image, (tracing)

I am aware that sketchup is a 3D modeling piece of software, I prefer to use it as i am also able to make quick 3D models of my products that help me edit and tweak them, also having a 3d object to work around helps to see where its flaws are. using 2D software would make doing this difficult and can take a lot more time.