[Vinnl]

I'm not sure how it works at ACM, but often, it's people retyping the contents of your article into a JATS-XML template and adding additional metadata (authors, date of publication, perhaps who funded it, etc.), which is then used to generate several outputs (e.g. PDF, HTML, but also citation lists, etc.).

[Merrill]

>The Journal Article Tag Suite (JATS) is an XML format used to describe scientific literature published online. It is a technical standard developed by the National Information Standards Organization (NISO) and approved by the American National Standards Institute with the code Z39.96-2012.

https://en.wikipedia.org/wiki/Journal_Article_Tag_Suite

>LaTeXML is a free, public domain software, which converts LaTeX documents to XML, HTML, EPUB, JATS and TEI.

https://en.wikipedia.org/wiki/LaTeXML

The wonderful thing about standards is that there are so many of them. And each one has variations.

[chrisseaton]

> people retyping the contents of your article

Wow. Well I can imagine that’s expensive.