Honorable mention
Electronic document management with metadata, workflows, and OCR hooks.
edmsocr
Retention, metadata, and search across document lifecycles—alternatives to proprietary ECM when files must stay in your region.
Electronic document management with metadata, workflows, and OCR hooks.
Document control, workflow, and records management platform.
Lightweight DMS with tagging, sharing, and OCR.
Assist in organizing your piles of documents, resulting from scanners, e-mails and other sources with miminal effort.
TagSpaces is an offline, open source, document manager with tagging support
Open Source Document Management System for Digital Archives (Scanned Documents)
The minimalistic document archiving platform.