Building a service can be both daunting and challenging. In this section, we will walk through an example of how to build a service based on an existing application. In this instance, we will be using LibreOffice to create a PDF.
One thing to mention about this example is how an external application can easily be integrated to build a simple service. Applications (specifically Linux) encompass a lot of versatility, which means they typically offer a great way to extend and incorporate these within a solution. For example, Inkscape can be used to convert SVG into PNG, while Calibre can convert EPUB into PDF. The bottom line, before going down the route of developing an application, is to investigate what is possible using already-existing applications.
Going back to the creation of our service, to build our application, we will encapsulate LibreOffice...