>A free tool you can try is minetext command line tool ( http://text-mining-tool.com/TextMiningTool%201.1.42.zip )
>
>Usage:
> minetext <input file>
>
> minetext <input file> <output file>
>
>where:
>
> <input file> - any file with one of the following extensions: pdf, doc, rtf, chm, htm, html
> <output file> - file you want to write text mined from input file

Thanks