Since Ubuntu is a Linux operating system, you can bypass the graphical user interface entirely and open your PDF files from the command line.

You can also find metadata even in unprocessed files using things like /Author and /Title. Command Line Magic The qpdf tool can convert a PDF file to another PDF file.

Here are some warm-up exercises for anyone just starting to use the Linux command line. Warning: It can be addictive.

Jack Wallen continues his Linux 101 series, with an introduction on how to copy files and directories from the command line.

The first thing you'll want to do to improve your terminal on a new Linux installation is install the Kitty terminal emulator ...

The Linux command line can seem impenetrable, with arcane instructions and a focus on text interfaces. Fortunately, there are plenty of resources and tools to help you get started.