Scribus is a free and open source desktop publishing software for Windows, MacOS, BDS and Linux. Using this tool you can create beautiful page layouts for magazine, books and more. It uses XML based file format to store your data. It comes with demanding PDF/X-3 specification support and more then 200 color palettes, RGB, CMYK and spot colors support. Some other useful features are build-in color wheel, picture browser, scripting engine using Python and layers support. It is written in C++ ,Qt framework and released under GNU LGPL license.
Install Scribus DTP software on Ubuntu
Scribus DTP software is available on Ubuntu repositories. You can install it via the terminal application. Open the terminal (ctrl+alt+t) and run below commands. If needed enter your Ubuntu user password during the installation.
sudo apt update
sudo apt install scribus
Then you can launch the application via below command or from application menu list.