PDFCraft is a free, privacy-focused PDF toolkit
Online service for PDF conversion (to PDF)
Another drawing editor for LaTeX with PSTricks & TikZ
Rapidly Generate Simple Pdf, CSV, & Excel Report Package on Laravel
Vector drawing program for LaTeX using PSTricks
Create PDF from JPEG scans and photos
Music score editor
PDF Library for Developers
A fast DVI to SVG converter
Xena transforms files into open data formats
Framework for search and display of heterogenous document collections.
DocBook Editing and Processing for Eclipse
Simple viewer app for most Booru Sites, coded in Qt C++
mcf2pdf converts files of the "My CEWE Photobook" software to PDF
eml2pdf converter
An HDL alternative to PCB graphical schematic capture tools.
converts Audacity label files to .cue (CUE) files