Capture2text - Capture2Text enables users to quickly OCR a portion of the screen using a keyboard shortcut.
Papermerge DMS - Open source document management system designed for archiving and retrieving your digital documents. Instead of having piles of paper documents all over your desk, office or drawers - you can quickly scan and upload them to Papermerge DMS.
TextSniper - Instantly extract any text from your Mac's screen
Paperless - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless, MacJournal and many more. Based in MN.
dpScreenOCR - Program to recognize text on screen
Paperless-NG - A supercharged version of paperless: scan, index and archive all your physical documents - jonaswinkler/paperless-ng