Which version of PDF/A does Mendix generate?

I see here that PDF/A has 4 variations.   https://www.pdftron.com/blog/pdfa-format/all-about-pdfa/   Does anyone know which variant Mendix produces? (Especially Mendix 8)
1 answers

By default Mendix does not enforce PDF/A compliance and it has to enabled.
Under the hood Mendix uses the Apache FOP engine to generate PDFs and
it’s configuration is stored in the /resources/fop.xconfig file of the Mendix project.

You can enable it in the configuration file by adding the <pdf-a-mode> tag: 

<fop version="1.0">
    <renderer mime="application/pdf">

See https://xmlgraphics.apache.org/fop/2.7/pdfa.html


If your PDF contains user generated content, then converting a PDF to a PDF/a compliant document might be a better option.