Free Multiple PDF Converter with Command Line Downloads
PDF represents digital documents stored in a manner that's independent from operating systems, application software, or hardware.
CLI stands for Command Line Interface, and it's an interface used to control the actions of an app by inputting commands in the form of successive lines of text.
This collection contains multiple applications that will allow you to batch convert multiple files at the same time between the PDF format and others, like HTML, EPUB, etc. These apps come with a built-in CLI that will allow you to automate conversion tasks. All these tools are free.