PDF Clown is a general-purpose Java and .NET library for manipulating PDF files through multiple abstraction layers, rigorously adhering to PDF 1.7 specification (ISO 32000-1).
This project aims to provide a universal access to PDF files (creation, reading, editing, rendering...) through an accurate and elegant object-oriented API.
A sheet music composition tool (for guitar, piano, etc.) using MusicXML. Including conversions of many music notation formats (such as Tablature, PDF, abc, XML, MP3 and MIDI) to and from MusicXML.