Create PDF from JPEG scans and photos
Cross-platform command-line tool for creation of PDF documents from scans/photos of pages in JPEG (.jpg) format and the lightest weight ANSI C library to put multiple JPEG files into one PDF file. You can add handwritten comments to PDF scans (over original images) with xournal: http://xournal.sourceforge.net/ It supports graphics tablets and saves comments to PDFs as vector data.
Digrary is Open Source Digital Library System that enables services for creating electronic archives.
The Emulation Framework offers a convenient way to render digital files in their native computer environment. The EF is software developed in Java by the international KEEP project, co-funded by the European Unions 7th Framework Programme.