PDF/A-1b compliance (package pdfx)

[Erik Nijenhuis]

Hi Ulrike Fischer,

On Wed, 2024-07-03 at 15:00 +0200, texhax-request at tug.org wrote:
> You are loading pdfx too late and so it can't set the pdfversion
> itself, it will then error if the current value is different to the
> one it wants to use. 
> 
> In your case you can probably avoid the error by loading
> \usepackage{luatex85} before pdfx, but a better solution is to move
> pdfx to some earlier place in the preamble (before tikz probably).

Great idea! I'll move it to the class file then and require luatex85 before
pdfx.

Erik