OctoPrint is the snappy web interface for your 3D printer
OpenPrinting CUPS Sources
Optimized firmware for RepRap 3D printers based on Arduino platform
Zasilkovna.cz PHP library supporting SOAP and REST API + custom Label
Client/server side PDF printing in pure JavaScript
Haskell pretty printer
Free Java Reporting Library
Powerful desktop publishing software
Hewlett-Packard's Linux imaging and printing software
neoHort:Java PDF&XLSX runtime builder-based iText&JExcelAPI&Apache POI
A Label Printer Application
Modular XSL-FO Implementation for Java.
Online service for PDF conversion (to PDF)
Easy lead sheets from text input
A version of CHORD4 updated to cooperate with ChordSmith.
Reporting tool, libraries and designer
Insert and manage Linux computers in AD
Easy-to-use print report library and designer