With Google Document, you can convert a word document file into PDF file. Of course you must have a google account first.
1. Open Google Document, http://docs.google.com
2. Sign in into your account
3. In your toolbar account, click upload
4. Browse your Word file then click upload file
5. Now, click File, select, Download file as, select PDF
6. Then appears “Export as PDF” window. You can edit first the properties of PDF document that will be save.
7. Click OK