By using A-PDF Text Extractor, you can easily convert your pdf file to text (txt) file.

From the option menu, you can manage such as: Page Range: Extract all pages, Page Range: Page from to, Extract: All pages, Extract: Odd pages, Extract: Even pages, Page: Header, Page: Footer, Extract Type: Smart Rearrange, Extract Type: In PDF Order, Extract Type: With Position.

You can download this A-PDF Text Extractor from: http://www.a-pdf.com/text/index.htm