Capture screenshots of websites
A PDF Reader and Note-taker for OS X
converts PostScript or PDF files to other vector graphics formats
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
JaxoDraw: Feynman Diagrams made easy!
ITTT is a Free tool designed to Scan and extract Text from Images.
Qt based cross-platform screenshot tool with annotations
CLI tool for making HTML presentations with Remark.js using Markdown
Fusuma makes slides with Markdown easily
BRIC is a powerful tool for batch image processing.
Simple and intuitive 2D vector drawing for electronics and not only.
Image Converter HTML5 add-on for Firefox
Transforms bitmaps into vector graphics
Converts Photo books to another format (ie. ifolor->scribus->pdf)