Convert HEIF or HEIC to PNG on Linux

Some applications like PolyCam only accept PNG files, and iPhones and other devices often store photos in a HEIF or HEIC format instead. Doing so on Linux is generally faster than on other systems without 3rd party tools.

Install Required Package

1. Arch sudo pacman -S libheif
2. RHEL Adjacent sudo dnf install libheif
3. Debian sudo apt install libheif libheif-examples

Convert a Single Image

1. cd to desired directory.
2. heif-convert input.heic output.png

Batch Convert a Folder

1. cd to desired directory containing multiple HEIF/HEIC files.
2. for f in *.heic; do heif-convert "$f" "${f%.*}.png"; done

Replace .heic with .heif depending on the specific file extension of your HEIF files.

Be sure to execute commands in bash if your distro uses zsh or fish, etc in the terminal emulators. This is my case when using CachyOS.