in our small 'journal' we used to make a lot of use of LaTeX, which easily allowed me to add line numbers to the reviewer version, of which a copy went along with the reviewers' reports back to the author.
In OJS, the author can upload only one file, which complicates use of LaTex, as the user now needs to create a .tar or .zip. I could require the .tar/.zip to contain the PDF version as well, so that reviewers do not have to create it themselves. Alternatively, I can ask the user to upload the PDF created from the LaTex, but then I don't have the source anymore to create HTML ... (If there is anyone with LaTeX/OJS combination experience, I would love to here those...)
Now, the LaTeX made is very easy to add line numbers to the PDF output, just adding a oneliner, which I used to do in a manual admin system in the past. This is a feature very much appreciated by our reviewers. However, I don't see how this would work in the OJS. Can I take the author submission offline, and replace it with a version which has a numbered PDF? What would be the OJS way for doing this?