Tesseract - Tesseract is an optical character recognition engine for various operating systems
Quick Scan - A scanner utility that enables you to quickly scan documents and manually set the DPI level...
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!
TurboScanner HD - TurboScanner HD is an app for iOS that enables you to convert the iPad or iPhone into a useful scanner and also serves as small fax or air printer in your pocket.
GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.
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 .