How to convert scanned or image based PDF files?

If your PDF file is a scanned or image based PDF file, the converted file will be a blank document or a picture document. Only the OCR software could convert scanned or image based PDF files to be editable. 

PDF Converter Pro is an OCR software 7-in-1 to convert PDF to Word, Excel, PowerPoint, EPUB, HTML, Image and Text on Windows 7/Vista/XP platform, which you can extract the text from scanned PDFs to be editable.

To know more details about PDF Converter Pro for Windows version through the link: http://www.wondershare.com/pdf-converter/
To know more details about PDF Converter Pro for Mac version through the link: http://www.wondershare.com/pdf-converter/mac/