TxReader Professional
TxReader is a software that converts documents to MP3 with speech recognition. It enables audio listening of all MS Word and PDF documents automatically upon a single click.
Kabware Developments 
TxReader Special Edition
TxReader is a software tool that can convert any text into spoken words and MP3 format. By using this tool, users can listen to their documents instead of reading them, and it works with MS Word and PDF files. With just one click, TxReader can read your files aloud.