I would like to georeference the image/map in order to overlay it with Google Satellite images and then produce some polygons in a GIS. Unfortunately, when I try this operation (through QGIS' plugin 'Georeferencer'), I obtain maps with strong distorsion at borders. For example, it is impossible to overlay the countries of Oceania (which is the main focus of my study).
I think that depends (but I'm not sure) from projections systems, which affect the borders of a map.
Any idea to solve this trouble?