MAP creation

Hi!!!
I know there are programs with which you can georeference charts you have in jpg, pdf, etc formats to use in gps programs. Is there a way to use this kind of georeferenced charts as the map??
Thanks!!!
I know there are programs with which you can georeference charts you have in jpg, pdf, etc formats to use in gps programs. Is there a way to use this kind of georeferenced charts as the map??
Thanks!!!