An open-source, clean-room reimplementation of Adobe Illustrator
FigCraft: interface design and prototyping
A PDF Reader and Note-taker for OS X
Drawing, graphics conversion, software development, administration.
Free and open source vector graphics editor for Windows, Mac, & Linux
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
Various small and useful command-line utilities
ITTT is a Free tool designed to Scan and extract Text from Images.
Qt based cross-platform screenshot tool with annotations
A PDF parsing, modification and creation library.
CLI tool for making HTML presentations with Remark.js using Markdown
Free OMR - OCR web sofware based on javascript and PHP
Virtual paper folding program