Tesseract - Tesseract is an optical character recognition engine for various operating systems
TextGrabber - Office & Productivity
ABBYY FineReader - ABBYY's latest PDF editor software, FineReader 16 you can easily convert files like PDF to Excel, PDF to Word, edit, share, collaborate & more with this PDF editor!
Onlineocr.net - Free Online OCR service allows you to convert PDF document to MS Word file, scanned images to editable text formats and extract text from JPEG/TIFF/BMP files
FreeOCR - Scanning OCR Software. Latest release: March 2015 v5. 4. Totally free OCR software for Microsoft Windows. Import Directly from Twain scanners, PDF and popular image formats .
GOCR - GOCR homepage. GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License.