Applescript to batch convert .doc files to .pdf, more details here http://www.leftbrained.co.uk/articles/show/batch-converting-doc-files-to-pdf

doc2pdf.scpt

set thefolder to choose folder with prompt "Pick a folder..."

tell application "Finder" to set filelist to every file of thefolder

repeat with currentFile in filelist
	tell application "Pages"
		open currentFile
		activate
		save front document in (name of currentFile) & ".pdf"
		close front document without saving
	end tell
	
end repeat