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, ...

How to convert Apple's HEIC files to PDF on a Windows or Mac computer

You can convert Apple's HEIC files to PDF on a Mac or Windows computer using the free Convertio website.
PC Magazine

Apple Shortcuts Trick: How to Convert iPhone Photos From HEIC to JPG

Your iPhone uses the HEIC file format by default, but it isn't universally supported, making it a hassle to convert these images to JPG. That's where Apple's Shortcuts app comes in. I've written for ...