Generating PDF/A using EvoPDF is not valid PDF/A [closed]

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I'm trying to generate PDF/A-1b document from a website using EvoPDF v3.0

When I verify the output using Adobe Preflight, I get the validation error "CIDSet in subset font missing"

Is there a way to work around this problem, or can someone suggest a different HTML to PDF generator capable of generating PDF/A-1b which doesn't use IE for rendering?

Answer 1

I can answer this myself.

pdfConverter.UseCrossRefStreams = false;