Description: doPDF is a free PDF printer that allows you to convert documents from any Windows application to PDF files. It installs as a regular printer and allows you to print to PDF from any software.
Type: software
Description: GeoGebra is free and open-source dynamic mathematics software for all levels of education. It combines geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. It can be used to teach math from elementary through university level.
Type: software
Pricing: Open Source