Description: PDFCreator is a free and open source program for Windows that allows you to print documents and other files to PDF format. It installs a virtual printer on your system that can generate PDF files from any application with printing capabilities.
Type: software
Pricing: Open Source
Description: Wolfram Alpha is a computational knowledge engine that allows users to get instant expert-level answers to questions on math, science, and many other topics by typing queries in plain language. It understands and computes answers across many domains.
Type: software