php pdf class
This is a comprehensive class for PHP which generates PDF documents. It includes support for changing fonts, centering text

Internet::WWW/HTTP::Dynamic Content
Printing

FreeImage
FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF,

Multimedia::Graphics::Editors::Raster-Based
Multimedia::Graphics::Graphics Conversion
Multimedia::Graphics::Viewers
Printing
Scientific/Engineering::Visualization

PPR Print Spooler
PPR is a spooler for PostScript printers. It supports PPD files, and provides operator alerts, job result messages, and

Printing

Foomatic
Foomatic is a database-driven system for using free software printer drivers with all known free software spoolers on Unix

Printing

MiKTeX
MiKTeX is an up-to-date implementation of TeX & Friends for Windows (all current variants

Office/Business
Printing

Library to create PostScript files
PSlib is a C-library for generating multi page PostScript documents. There are functions for drawing lines, arcs, rectangles

Printing

HP OfficeJet Linux driver
Linux printing, scanning, and photo-card access on most HP multi-function peripherals

Multimedia::Graphics::Capture::Digital Camera
Multimedia::Graphics::Capture::Scanners
Printing

Java 2D PostScript Text
Java 2D PostScript Text builds on the Java 2D Graphics2D class to generate PostScript code for text-intensive, global printing

Printing

PrinterAdmin
PrinetrAdmin`s a graphical printer administration application for Linux. It`s running under KDE and use BSD like printer

Printing
System::Systems Administration

Print Rabbit
Print Rabbit is a gnome program that enables you to monitor and administrate your print queue. It is developed in C and

Printing