I have an image file in pdf format which includes some drawings (lines, closed areas, and points). I want to digitize it into a shapefile so that I can show it on a Google map. I have a couple of questions:
- Can I digitize it into a shapefile?
- Which coordinate system should I assign it so that it fits on the right place on a Google map. My image belongs to some place in Sweden, but I don't know the exact place. Which coordinate system should I choose for digitizing?
- Is there any free software available for digitizing? I have Map Window - can I digitize with the help of Map Window?