Does anyone know how you would convert a PGN file into a PDF or DOC (either one is fine) file? Are there any programs that somehow read PDF or DOC as chess positions (such as Fritz) or would this request simply mean a PDF file that a human could read?

PGN files are just stored as plain text documents. They're not really a file format themselves, they are just a way to express a chess game in text. You could open one in Word and save it as a text document, or use the distiller to print it out as a pdf document. But any chess program that reads pgns is going to be expecting it in text format.

As ichabod says, you can just open a PGN file as text in Word, and then save as a doc.

You can open, and read pdf's with Adobe Reader or Adobe Acrobat.  Some pdf's will allow you to highlight, and copy a portion of the text, so you could copy the moves of a game, and paste them into a game window in a program like Chessbase or Fritz.  Some pdf's, especially commercial ones like ebooks, it is impossible to copy from, so you would have to retype the moves by hand.