Hi @mgm-rwagner , looks like the title XMP metadata is not set according to the checker:

I'll have a deeper look.

hi @mgm-rwagner , I did a small test, you need to set the "PdfAConformance".

In you builder:

builder.usePdfAConformance(PdfRendererBuilder.PdfAConformance.PDFA_3_U);

You get:

I'll update the documentation, as it was missing this line of code.

About the reason: you can see in https://github.com/danfickle/openhtmltopdf/blob/open-dev-v1/openhtmltopdf-pdfbox/src/main/java/com/openhtmltopdf/pdfboxout/PdfBoxRenderer.java#L728

Without a PDF/A set, it will avoid the whole section where it set some part of the xmp metadata.

Thank you for the fast response. Now it works.

One should be able to create PDF/UA docs that are not also PDF/A compliant, I think. I'll have to do some research on what metadata is required in each of the following circumstances:

• PDF/UA
• PDF/A
• Both
  This also shows the perils of not having automated testing as it was correct (I believe) for PDF/UA but not PDF/A before fix was applied for the latter.

BTW. Thanks @syjer for investigating.