One more way is to have your self install "Cute PDF Writer" this is available for free and you can easily install this as it gets integrated with MSWord and you can easily convert your documents into PDF files. For converting you just have to press the print (ctrl+p) from the file menu and choose the cute pdf write from the menu and click OK and then you will be asked to save the file in the location you want... so easily you get your pdf files easily made from word files... hope this helps...
just write ur question on google u find there is many sotware available there for this work just download one of them and do wat u want cheers....
maybe this link will help you http://www.hit.ro/downloads/files/Word-to-PDF-Converter.html = have a great day.