What is the best "Optical character recognition software "

Any body know what is the best "Optical character recognition software ". I have few image text i want convert them to document files. So what is the best?

OCR Scanning is available in most (but not all) versions of MS Office.
About Microsoft Office Document Imaging - Support - Microsoft Office
Use text or pictures from an online fax or a scanned document

Here's some 3rd party OCR apps that convert PDF docs (for example) to MS Word docs:

WITH 3RD PARTY SOFTWARE - ON-LINE:
(Most of the on-line apps do not allow you to edit your final document.)

PDF Converter You can convert user ‘password protected’ PDF files to JPG and PNG. However, there is an interval of 30 minutes between each submission.

Koolwire You can choose the destination file format

Show Pdf Online PDF to HTML converter that allows you to type the URL address of a PDF file to view it in your browser in HTML format.

Document Converter eXPress Convert files to PDF or image (BMP,TIFF,JPEG,GIF,PNG) free online. It allows you to set the resolution and quality of the output file.

Online PDF Converter allows you to convert your PDF file to text or image (JPEG, PNG, GIF, TIFF) free. The file size should not exceed 100Kb.

Convert PDF to Word works quickly to convert your PDF files and let you download the Word document. If you create a PDF file by scanning in documents via a scanner, it will not work.

Zamzar The most popular online file conversion site. It converts a PDF to Word, HTML, ODT, PCX, PNG, PS, RTF, and TXT. This free service allows you to convert files up to 100MB. Cannot Edit.

PDFonline. Images are merged to background, Cannot Edit them separately.

3RD PARTY SOFTWARE - OFF-LINE:
(Some are editable and some are not. I've listed the apps that CLAIM to be editable, but I only can vouch for the ones I've used myself.)

I've tried this PDF to Word doc file converter: 1-2-3 FileConvert - Free PDF to Word Converter and not only does it work well, but the resulting Word doc is editable.

AXPDF PDF to Word Converter. - editable
PDFedit - Browse /pdfedit at SourceForge.net editable
PDF To Word Converter Version 3.0 (as of Jan 2011)-

AnyBizSoft PDF to Word Converter Free - an easy-to-use application. The PDF to Word conversion quality is fairly good. For all the elements, like text content, images, forms and even hyperlinks will be converted to Word. One biggest advantage over other converters is the RESTRICTION REMOVER feature, removing encrypted to prevent from copying, printing and editing.

PDF Converter Professional 6 - $99.99 (published by NUANCE – which makes OmniPage OCS software - $499). PDF Converter Professional is Nuance’s PDF to Word EDITOR! http://www.nuance.com/imaging/pdfconverter/pdfconverter-professional.asp

PDF-to-Word Download PDF-to-Word Demo 2.5 $30 -an application that allows you to convert PDF files to .doc files. Although there are many PDF converters out there, this one allows you to completely convert a PDF file conserving its original formatting, which many other application just can't do. This application will analyze your PDF file from bottom to top and, then, in a very smart fashion. It will take into consideration the disposition of paragraphs and graphics and convert them accordingly, so that you get a loyal copy of your PDF in a format that is easily editable. It also converts graphics and lines characteristic of the PDF format into elements that are supported by word. The user interface is really graphical, which makes it easy for the user to know what to do and how to do it. There are many options that the user can play with to get a document of his or her liking.