Invoice.to - A simple & beautiful invoice generator with Stripe & Paypal
Tesseract - Tesseract is an optical character recognition engine for various operating systems
Free-Invoice.co.za - Free Invoice Software | Free online tool that helps small businesses to generate free invoices and manage their contact list. It can be used as an alternative to expensive invoicing software and online invoicing applications
GOCR - GOCR homepage. GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License.
Free Invoice Generator - A free invoice generator for startups
TextGrabber - Office & Productivity