Alambic is an enterprise class solution for creating and distributing PDF documents in the home or corporate environment. Implemented as a CUPS backend, it is able to generate PDF documents and make them available by email or HTTP. It can use any PostScript to PDF converter, though Ghostscript is the converter of choice used during development.
Bidwell (named for Shelford Bidwell, the inventor of the first true fax machine way back in the late 1800s) is a set of Perl scripts that are designed to run as a cron job on a Unix-like system to download emails from a POP3 account and send their contents to a CUPS or lpr printer.
The Big Faceless Java PDF Viewer is a Swing component that can display PDF documents. It is intended for developers who don't require the full API. The PDF Viewer can be installed as an applet, an application, via Java Web Start, or embedded in a Swing application. Printing, saving, text search, forms, digital signatures, and annotations are some of the many features available. The viewer can be tailored to include just the features you need, and is a cost-effective solution for those needing the features of Adobe Acrobat on a Java platform.
CDox is an editor for CD documents like CD covers, back sides, and booklets. It features many image processing options like sharpen, contrast, etc. One can use images and text as elements, and those elements can be flipped/rotated/resized in any way. It has easy-to-use features for previously-made images that are meant to be CD covers. It has also some features for automatic cover creation from MP3 CDs, CDs with filesystems, and CDs with video files.
The CUPS Driver Development Kit (DDK) provides a suite of standard drivers, a PPD file compiler, and other utilities that can be used to develop printer drivers for CUPS and other printing environments. CUPS provides a portable printing layer for Unix-based operating systems. The CUPS DDK provides the means for mass-producing PPD files and drivers/filters for CUPS-based printer drivers.
The project provides a mailto backend for the Common Unix Printing System. The mailto backend emails the filtered output to the user who requested the print job. The print job's output will be MIME attached to the email. cups-mailto depends on /usr/bin/file -i to generate the MIME type for this attachment.