The Apache PDFBox library is an open source Java tool for working with PDF documents.
PDF renderer implementation supporting the subset of PDF 1.4 specification.
The Apache Preflight library is an open source Java tool that implements a parser compliant with the ISO-19005 (PDF/A) specification. Preflight is a subproject of Apache PDFBox.
YaHP is a java library which permits to convert an html document into a pdf document.
A library for reading, writing and manipulating PDF files.
Content parser for files of the mimetype "application/pdf".
An extendible and configurable PDF manipulation layer library. A ready to use java library to perform PDF documents manipulation without having to deal with the low level API. Sejda offers many "ready to go" manipulations implemented using the iText, PDFBox or ICEpdf but it can be extended and/or configured to use other implementations.
Create PDFs using plain old HTML+CSS. Uses wkhtmltopdf on the back-end which renders HTML using Webkit.