I'll go one step further. TechComms groups in commercial organizations are often called upon to generate PDF versions of entire guides or references for various reasons ranging from supporting an in-process deal negotiation to supporting unusual on-premise installation needs, such as installing into secure air-gapped environments.

CMS tooling such as MadCap Flare, Document360, and Confluence recognize and support these use cases by enabling a multi-select manifest of all topics (all .md and .mdx files), that enables you to print multi-topic outputs with configurable front matter and configurable headers/footers.

It would therefore be great if any native PDF functionality developed by the Docusarus team would also support some type of multi-topic PDF output, with properties that enable you to define cover page title, cover page logo, copyright and legal disclaimer content on the 2nd page, auto-generated TOC starting on the 3rd page, and customizable header and footer content.

I am running md2pdf right now to deliver pdf to our customers. But I agree with you. It would have made it easier if there was a button that you could press :)