PDF transformation/manipulation program + library
WorkerPDF is GUI for GhostScript created for PDF conversion
GUI to set PDF initial view using Ghostscript on Windows
GUI for updating PDF bookmarks using PDF Toolkit (PDFtk) on Windows
PyPDFConverter is program to convert Word files and images to pdf
Merge images and PDFs to a single PDF
Converts every printable document to PDF, JPG, PNG, TIF and more
Convert files with output for dot-matrix printer into PDF
PDF Measuring and Takeoff Software for Construction