Install gif2apng by entering the following commands in the terminal:
sudo apt update sudo apt install gif2apng
Description:
tool for converting animated GIF images to APNG format
This package provides a command line tool for converting images from animated GIF to Animated PNG format. . The Animated Portable Network Graphics (APNG) file format is an extension to the Portable Network Graphics (PNG) specification. It allows for animated PNG files that work similarly to animated GIF files, while retaining backward compatibility with non-animated PNG files and adding support for 8-bit transparency and 24-bit images.
Homepage: https://sourceforge.net/projects/gif2apng
Version: 1.9+srconly-2
Section: universe/graphics