==== Context
We're currently working on a way to support the Citoid service in retrieving metadata from PDF properties or content. Adding this functionality the citoid-service in NodeJS comes with some additional security considerations. On the one hand regarding the added node package dependencies and on the other regarding the need to put such a functionality into a separate sandboxed service.
==== Idea
We'll try to explore alternatives here that we would want to discuss with stackholders. The obvious one being the #mediawiki-extensions-pdfhandler that parses PDF properties using `xpdf-utils` and `poppler-utils` on the PHP backend side for uploaded PDF files.
==== Questions
- Could we use the PdfHandler and add an API to it that ( temporarly ) downloads PDF's files from external sources and analyzes them?
- Should we rather and such an API to the #citoid //extension// using the same tools in the background?