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First off, forgive me if I am asking a dump question. I am new to this, but find maps to be very fascinating.  I am attempting to make custom maps(to use on Garmin Oregon450) from two pdf maps from shasta trinity forest visitor maps. I tried to post a link to the pages where the maps are, but i guess i am not allowed to post links. I have g rastor, but these maps don't have any geo data and do not seem to convert to .tiff's through g rastor pdf tool correctly. So i found a different program to convert the pdf's to tiff's so i could overlay them onto google earth. i was successful in creating custom maps through google earth, but am not very happy with the quality(i can barely read the road names ect., not to mention I need to break the file up with g rastor so it displays correctly on my gps). I guess what i am asking, is there a better way to convert these to raster maps?(as far as converting pdf to tiff and also orientating the map to the proper coordinates when the pdf files does not have the correct properties? the coordinates are printed on the maps. is there a way to geo reference these maps in g-rastor? i would be great if someone could give be a step by step example of how to do this efficiently and accurately if it is possible. If you read this, thank you for you time and any help or advise is appreciated.