Apostrophe is a free and open source Markdown editor for Linux. It is a distraction free GTK+based with minimal and clean UI Markdown editor. It comes with the inline preview feature. This feature will format the markdown commands automatically and export to a good locking document. Some other important features are popover preview for images, links, footnotes and equations and export your markdown document to PDF, ODT, Word and HTML file format. It also comes in light and dark mode, focus mode, hemingway mode, spellchecking, document stats and more than 18 languages support.
In Apostrophe you can set up to five different Markdown flavors. They are Pandoc’s Markdown, CommonMark, Github Flavored markdown, MultiMarkdown and Plain Markdown. It supports full-width, half width, half height and windowed views. You can sync views and auto-hide headerbar also.
Install Apostrophe on Ubuntu
Apostrophe is available as a flatpak package file. You can install it via the terminal application. You need flatpak on your system to install any flatpak software. Follow below link for the flatpak and flathub installation on your Ubuntu system.
How to install flatpak on Ubuntu
Restart your system after the flatpak installation. If you already have flatpak then skip the above steps and directly install Apostrophe using below command. Open the terminal app (ctrl+alt+t) and run below Apostrophe flatpak installation command.
flatpak install flathub org.gnome.gitlab.somas.Apostrophe
After the installation of Apostrophe markdown editor run this command to start it.
flatpak run org.gnome.gitlab.somas.Apostrophe