JagPDF : A library for generating PDF documents in C/C++, Python, and Java

JagPDF is a library for generating PDF documents in C/C++, Python, and Java. It supports TrueType (subsetting) and standard 14 Type 1 fonts, font metrics, Unicode, UTF-8 and common 8-bit character encodings, images (JPEG, PNG, or custom), paths, color spaces (RGB, CMYK, CIE based, ICC profiles, indexed), encryption, bookmarks, hyperlinks, and more.

• Licenses : Open Software, MIT/X
• Operating Systems : Windows, Linux
• Implementation : C, C++, Python, Java

Virtual Token Descriptor for eXtensible Markup Language (VTD-XML)

Virtual Token Descriptor for eXtensible Markup Language (VTD-XML) refers to a collection of efficient XML processing technologies centered around a non-extractive XML parsing technique called Virtual Token Descriptor (VTD). Depending on the perspective, VTD-XML can be viewed as either an XML parser, a native XML indexer or a file format that uses binary data to enhance the text XML, an incremental XML content modifier, an XML slicer/splitter/assembler, or an XML editor/eraser.

• Licenses : GPL
• Implementation : C#, Java, C, C++

MUSCLE (Multi User Server Client Linking Environment) : An N-way messaging server and networking API

MUSCLE (Multi User Server Client Linking Environment) is an N-way messaging server and networking API. It includes client-side networking APIs for various languages, including C, C++, C#, Delphi, Java, and Python. MUSCLE lets programs communicate over a network via streams of serialized Message objects. The included server program ("muscled") lets its clients message each other and store information in its server-side hierarchical database. The database supports flexible queries via hierarchical wildcarding, and "live" updates via a subscription mechanism.

• Licenses: BSD Revised
• Operating Systems : BeOS, Mac OS X, Windows, OS Independent, POSIX
• Implementation : C, C#, C++, Java, Python