FontForge is a free and open source font editor for Linux, Windows and Mac OS X .Using FontForge font editor, you can create, convert and edit fonts. Currently it supports OpenType, TrueType, UFO, CID-keyed, Multiple Master, and many other formats. It is also available in command line mode. You can download FontForge from the below download link. For the Linux installation steps please follow below articles.
Install FontForge on Ubuntu Linux
Download FontForge in .AppImage file format from the above download link and save it on your Downloads folder. Open terminal command line app (ctrl+alt+t) and run below commands one by one.
sudo chmod +x ~ FontForge-2020-11-07-21ad4a1-x86_64.AppImage
Here”FontForge-2020-11-07-21ad4a1-x86_64.AppImage” is the downloaded file name. You can change above command based on your file name.
Install FontForge via Flatpak:
First install flatpak and flathub and restart your system. In your terminal run below command to install FontForge flatpak.
flatpak install flathub org.fontforge.FontForge
You can start app by using this command.
flatpak run org.fontforge.FontForge
And uninstall using below command.
sudo flatpak uninstall org.fontforge.FontForge