Public Domain OCR Software Tcl , tool command language, an embeddable scripting language. Tk , a graphical user interface toolkit based on Tcl. A Web Enabler WISE Project Management System a 16 bit Windows 3.1 port of the QV libary , VRML parsing library MOPS , a powerful PD development system for the Macintosh HDF , Hierarchical Data Format. A multi-object file format for the transfer of graphical and numerical data between machines. GIF89a Animations Paul Marquis' backgrounds, bars and buttons Public Domain Images , a commercial service that finds PD visuals for your needs.
Site includes many free JPEGs on various subjects.
Archival Digital Imaging , creates CD-ROMS for librarians and collectors of US history. Government Works Works produced by the U.S. Federal government are not copyrighted. See here for details and here for more details. Catalog is in the PD, publications listed in the Catalog are usually in the public domain, although it would be a good idea to touch base with the publishing agency if planning to go commercial. In Macintosh format.