GIMP - GIMP is a multiplatform photo manipulation tool.
MaintainX - Manage your Maintenance and Operations. Without the paper stacks.
Fiji - Fiji: A batteries-included distribution of ImageJ.
Poka.io - Communication and training solutions for manufacturers.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.