Chess application whichs allows working with chess PDF books and PGNs.
Common Resource Grep
Document Management System and Content Management System
Easy-OCR solution and Tesseract trainer for GNU/Linux
The DjVu complete solution,with OCR Technology(Arabic ,English).
Realtime bigdata tool for bit strings up to 2^63 based on AVL forest
File-'em is an automatic receipts organizer implemented in Java & SWT.