LibrePDF

OpenPDF

OpenPDF is a free Java library for creating and editing PDF files, with a LGPL and MPL open source license. OpenPDF is based on a fork of iText. We welcome contributions from other developers. Please feel free to submit pull-requests and bugreports to this GitHub repository.

OpenRTF

The Open Source RTF (Rich Text Format) Java Library

OpenPDF5

OpenPDF5 is a fork of iText 5 - maintained as open source project with an AGPL license.

flyingsaucer

XML/XHTML and CSS 2.1 renderer in pure Java

.github