This program is exactly what its name implies: a utility that allows you to convert PDF documents to Word-compatible formats for free. The application supports batch conversion, immediately gets you the output files you need, and doesn't slow down the performance of your system while completing the given tasks.
After you import the PDF documents you wish to convert, go to the Options window and configure the output settings according to your needs. The application lets you choose which pages you need to be converted to the DOC format, select a destination folder for the output files, opt for the proper render mode (Flowing, Continuous or Exact), etc.
Once you finish configuring the output settings, click over the "PDF To Word" button from the upper-right side of the interface and wait for the results.
My only problem with this application is the fact that it doesn't let you convert encrypted PDF documents. It allows you to import encrypted PDFs, configure the output settings, but fails to deliver any output files.
However, you should give this app a try if you don't plan on converting encrypted PDFs. It's simple to handle, works fast, and is free.