Open source PDF editor
A library that can help you with generating PDF documents
Prepress preparing tool and PDF editor
A PDF Reader and Note-taker for OS X
Scan documents to PDF and other file types, as simply as possible.
converts PostScript or PDF files to other vector graphics formats
High Volume Variable Data Printing & Mail Merge in PDF format
a library to create/modify PDF documents using HDC/TCanvas
.NET CLI tool for decrypting pdf files. (Pdf password remover)
A PDF parsing, modification and creation library.
PDF Library for Developers