Actually, I meant in the PDF file!
How to apply the same layout (journal title, margin under titles, margins between titles and authors names, affiliation,...between abstract and the introduction...etc.).
This can be done manually but it's time consuming and it will not be the same all time, as we may make mistakes here or there! So, an automatic solution may be a good alternative!
Take a look at PDF articles published professional editors, you will see that articles always appear with the same layout (margins, blank space between sections, different fonts and sizes for different sections..etc)!
They should use a template for that, shouldn't they?