The best free way
There are three steps for doing this
1. Download and install ghost script(e.g Alladin, find it in Google)
2. Install a post script printer (any company any model which has the last word ps, you donot have to have a physical printer e.g go to add printer,
select the company HP, select any model with ps e.g HP laserjet PS)
3. Download the program called word to PDF by searching google, its free.
Install the above three and u r done.