You don’t need expensive software for basic PDF tasks. In fact, all you need is a handful of free web-based apps.

The HealthGPS Update Report – 20th Feb 2026 summarises integrated changes (demographics, socioeconomic/income, static and dynamic risk factors, analysis/output, disease/PIF, policy, config/schema), ...

Microsoft Visio is one program that best suits everyone’s needs for drawing, preparing charts, and creating flowcharts. The industry-standard program lets you display complex diagrams quickly and ...

I began writing programs in 1957. For the past four decades I have been a computer science researcher, doing only a small amount of programming. I am the creator of the TLA+ specification language.