OCRFeeder is a document layout analysis and optical character recognition application. It is able to automatically outline a document image's contents, distinguish between graphics and text and perform OCR over the latter. It can export to several formats, its main one being ODT. OCRFeeder has a GTK+ graphical user interface that allows the user to control the application and, for example, edit and correct the automatic recognition. It can also be used from the command line for automation.
FF Multi Converter is a simple graphical application that converts audio, video, image, and document files between all popular formats, using and combining other programs. It uses ffmpeg for audio/video files, unoconv for document files, and the ImageMagick library for image file conversions.
HERMESfax is a fax document management system that offers simple workflows and feature-rich possibilities. Features include sending and receiving faxes, forwarding faxes between users, management of user documents, workflow management, and supervising the service. It is a Web-based application offering: persistence of historical documents in an SQL database (MySQL and PostgreSQL), filesystem load balancing, multi-user access, privacy and security of documents, and hierarchical management of workflows.