OctoPrint is the snappy web interface for your 3D printer
Zasilkovna.cz PHP library supporting SOAP and REST API + custom Label
Powerful desktop publishing software
Hewlett-Packard's Linux imaging and printing software
Free Java Reporting Library
Reporting tool, libraries and designer
Insert and manage Linux computers in AD
Easy lead sheets from text input
A version of CHORD4 updated to cooperate with ChordSmith.
Java Web Printer
Online service for PDF conversion (to PDF)
neoHort:Java PDF&XLSX runtime builder-based iText&JExcelAPI&Apache POI
Emails document printed by CUPS to the user printing it
A utility that adds manual duplex to the "Print" menu
Wubiq. Printing from anywhere, everywhere.
Non-spooling printer daemon
Convert files with output for dot-matrix printer into PDF