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I am in need of guidance on how Pre-Flight failing to convert a PDF 1.7 document to PDF/A-2A, I am using Adobe Pro DC 2021, each time the conversion fails with:
MarkInfo missingStructured PDF: Structure tree root entry missing
The document is a simple 2 pager with a 2 cell table in it?
Any ideas would be welcome?
Thank you for reaching out.
Please refer to the information provided in the following help documents:
PDF/X-, PDF/A-, and PDF/E-compliant files (Acrobat Pro)
Adobe PDF conversion settings
If you still experience the issue, would you mind sharing the PDF with us so we can check it on our end?
Also, share the screenshot of the conversion failed message.
PDF/A-2a must be fully and correctly tagged. You should check the tagging has been done. If you aren't interested in spending hours or days tagging, perhaps use PDF/A-2b.