G.I. Joe. Originally published in the 1950s by Ziff-Davis Publishing Company.

These products are scans of the original comics, not the physical comic itself.

You can purchase the comics in pdf format on a CD or download the individual issues (again as pdfs).

To purchase all of these issues on a CD for $4.50, just select quantity of 1 near the top of the page and hit "add to cart".
To purchase each issue individually as a download for only a dime each, just select quantity of 1 below for each issue you want to download. Then hit "add to cart".

Not sure what a comic book in pdf format looks like: Take a look at our free samples at:
http://www.comicweb.com/onlinecomics.htm