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Structure element issues after conversion to pdf

I have an accessibility issue where some of the document structure is missing when saving a docx as a pdf.

The resulting pdf was analyzed using PAC3 (one of the most comprehensible accessibility testers for pdfs) and showed the following errors Pac3Result.jpg (81.1 KB):

  • "Figure" element on a single page with no bounding box (the image of an onion).
  • Table header cell has no associated subcells (x4, one for each table header).
  • A detailed description of what it is can be found here (Figure) and here (Table header), summarized it means the following:

  • Images converted from with Aspose doesn't get a bounding box ("/BBox []" attribute) specifying the size of the image.
  • The table header cells probably lacks individual references to the associated subcells, or they aren't marked as "columns".
  • Technical info
    Files used: Documents.zip (251.6 KB) [SourceDocument.docx, WordToPDFA-1a.pdf].
    Formats: .docx -> PDF/A-1a.
    Version: Aspose.Words 20.7 for .NET


    The shared PDF file is generated by old version of Aspose.Wrods. Please use Aspose.Words for .NET 20.7 to check this scenario. Please let us know if you still face the same issue.

    Yes, 20.7 gives the same issue: WordToPDFA-1a.zip (93.6 KB)


    We have tested the scenario and have managed to reproduce the same issue at our side. For the sake of correction, we have logged this problem in our issue tracking system as WORDSNET-20766 . You will be notified via this forum thread once this issue is resolved.

    We apologize for your inconvenience.

    Is there an update on this issue. We are using Aspose and have a requirement to make all Pdfs accessible, so need this as soon as possible. We are encountering the same issue.

    I appreciate your assistance!


    Unfortunately, there is no update available on this issue at the moment. We will be sure to inform you via this forum thread once there is any news available on your issue. Thanks for your patience.

    The issues you have found earlier (filed as WORDSNET-20766) have been fixed in this Aspose.Words for .NET 22.1 update also available on NuGet.