Tesseract - Tesseract is an optical character recognition engine for various operating systems
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
GOCR - GOCR homepage. GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License.
NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
TextGrabber - Office & Productivity
VueScan - Third-party software for film scanners and flatbed scanners.