WhatsApp can do more than send messages and photos. A hidden tool inside the app turns stacks of paper into tidy digital files in just a few taps.

When you compress your PowerPoint, you'll have to reduce the quality of any music, videos, or pictures you have in your slideshow.

To search a PDF on your Mac for a specific word or phrase, you can use the search function in the built-in Preview app.

Action on climate change is urgently needed if we are to protect public health and health systems from the catastrophic impacts of climate-driven extreme events, including tropical cyclones, heatwaves ...