OCRFeeder vs Open-Capture

OCRFeeder is a Linux system for analyzing document layouts and recognizing text in images. It automatically outlines image content, separates graphics from text, and applies OCR to text regions. Its GTK graphical interface lets users correct recognition errors and bounding boxes, set paragraph styles, and clean input images. Users can import PDFs and save or load projects. The application exports to multiple formats, with ODT as its main format, and provides both a graphical interface and a command-line interface. It works with system-wide OCR engines, including command-line OCR engines. Documentation for the graphical interface is available from its Help menu or with F1. OCRFeeder is free software under the GNU General Public License, version 3 or any later version chosen by the user. The GNOME project page links to source code and release packages, and the project page links to a GitLab issue tracker. Its listed roadmap includes proposed additions such as plain-text export and undo/redo support. The README states that the software is provided without warranty.

Open-Capture collects documents, extracts information with OCR and AI, and exports results to third-party management software. It accepts material from scanners, copiers, file drops, email and attachments, web forms, uploads, and web services. Extraction options include Tesseract OCR, pre-trained models, machine-learning classification, key-value extraction, reference-data matching, dictionaries, and barcode or QR-code reading. Extracted fields can be checked against rules, formats, reference data, and scripted business rules. The full-web application runs natively on Linux and can be hosted on-premise or in a public or private cloud. It is free and open-source under the GNU GPLv3 license, with no limit on users. Optional modules include Splitter for preparing batches, Verifier for checking extracted data, and MailCollect for email processing. MailCollect analyzes messages, identifies senders, extracts metadata, and routes attachments into processing workflows. Verifier is described for structured or semi-structured documents such as invoices, delivery notes, contracts, and purchase orders. Listed connections include a native MEM Courrier connector, CMIS, OpenADS/Oxalis, OpenCRM, Alfresco, and SharePoint; export formats include PDF, PDF/A, XML, CSV, and plain text.