open source Java library for creating and editing PDF files
Open source PDF editor
WorkerPDF is GUI for GhostScript created for PDF conversion
Application to inspect text and images of pdf books.
Prepress preparing tool and PDF editor
Booklet, Signature generator, Imposition
A PDF parsing, modification and creation library.
Merge images and PDFs to a single PDF
PDF Library for Developers
Insert PDF into DWG in AutoCad. Autolisp Frontend for PSTOEDIT