Inkscape Tutorial | Import PDF Files into Inkscape | Free Background Graphic
http://www.youtube.com/watch?v=Z9Xr_49K5tM
http://www.youtube.com/watch?v=Z9Xr_49K5tM
http://www.youtube.com/watch?v=s41_-qsmA7s
https://www.youtube.com/watch?v=tb9KmW_x2A0