HEIF pictures

https://askubuntu.com/questions/958355/any-app-on-ubuntu-to-open-and-or-convert-heif-pictures-heic-high-efficiency-i?rq=1

In Ubuntu 20.04: you have to install the package heif-gdk-pixbuf (no PPA needed):

In a terminal: sudo apt install heif-gdk-pixbuf

This will install libheif1 and libde265-0 along.

As of May 2020, programs that support HEIF via libheif1 include:

GNOME Image Viewer (Eye of GNOME - eog) is updated in Ubuntu 19.10 and later.

GPicView version 0.2.5-3

GIMP 2.10.2+

Krita version 4.2

gImageReader (in Ubuntu 20.04)

heif-thumbnailer - a thumbnailer for HEIF images that can be used by Nautilus and Nemo.

libheif-examples – provides command-line utilities: heif-convert and heif-enc.

Online Tools

    • Google Photos and Dropbox both reportedly support HEIF.
    • There are other online converters (e.g. HEICtoJPEG), but check their privacy policies before use.

Miscellaneous

    • Imagemagick, as of 7.0.7-22, can be compiled with the --with-libheif flag.
    • tifig is described as "a fast HEIF image converter aimed at thumbnailing". However, it must currently be compiled from source.
    • Nokia HEIF Info and Source Code. However, Apple's implementation differs somewhat.