Earlier this year, I needed to upload the LaTeX file and it needed to be written with the journal&#x27;s template. In order to specifically fit into the journal&#x27;s guidelines, the template was sent to some editing contractor where some minor changes where made to the source, e.g. &quot;eq.&quot; to &quot;Eq.&quot;.<p>As far as I know, a lot of the journals have their own automated build systems for the manuscripts to perfectly fit into their designs.<p>Nevertheless, I&#x27;ve also encountered PDF uploads. But even then, the PDF will be automatically checked for consistency.