1. Doc2PDF.net is an online service to create Acrobat PDF Documents from microsoft word documents(include .Doc and .Docx formats) for Free. All you need to do is select one of your word file then click on "Convert Document" button.Pros: Free, Support .Doc and .Docx formats both.
Cons: Ads on the page, No Batch Mode.
2. PDFOnline Word To PDF is another free online Word To PDF Creator like Doc2PDF.net. The different between them is when you use PDFOnline Word To PDF, you need to submit your email address. Once PDFOnline Word To PDF finish creating, you will see the converted PDF file in your email box.Pros: Free, Secure(Because they send files into your email box).
Cons: 2MB upload filesize limited, No Batch Mode.
3 Zilla JPG To PDF Converter
The two free online tools above are all word to pdf creator. Sometimes people may need to create pdf from image files like JPG, BMP, TIF etc. Zilla JPG To PDF Converter is a windows desktop application for creating pdf document from image formats like JPG, BMP, TIF, GIF, PNG etc. Zilla JPG To PDF Converter also support to convert Photoshop PSD file to PDF Document.
Pros: Free, Several image formats, Batch Mode, PC Application, No Adsware/Maleware.
Cons: Cannot Create PDF From Word.