How to convert Apple's HEIC files to PNG if you need to use the more standard file format

You can convert HEIC files to the PNG format using a few different methods. Here's how to convert HEIC to PNG on an iPhone, ...
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How a dispute over royalties gave birth to the PNG file format

The resulting battle led to the creation of the royalty-free Portable Network Graphics (PNG) format, which is still widely used today. So how did it get to that point? In 1987, GIFs, an abbreviation ...