I am not a member of The Lisperatti, so this may not be of interest to you.
 
	 
 
	Are you familiar with the Automatic Publish functionality of Autocad?
 
	As shown in the screenshot.
 
	I don't USE it, but I know that it will automagically create a new folder for your PDFs, once setup.
 
	As I recall in the same folder as your original dwgs., but configurable.