Description: CmapTools is a free concept mapping software developed by the Institute for Human and Machine Cognition. It allows users to visually organize and represent knowledge in a node-link format to build concept maps.
Type: software
Description: PDF-XChange Viewer is a free PDF reader and editor for Windows. It provides basic PDF viewing and annotation features like adding text notes, highlights, shapes, freehand drawing, and more.
Type: software
Pricing: Free