Aspose.Words for .NET. Working with PDF/A or PDF/UA using C#.

update-screen-tip.cs

// For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-.NET.git.
Document doc = new Document(MyDir + "Table of contents.docx");

var tocHyperLinks = doc.Range.Fields
    .Where(f => f.Type == FieldType.FieldHyperlink)
    .Cast<FieldHyperlink>()
    .Where(f => f.SubAddress.StartsWith("#_Toc"));

foreach (FieldHyperlink link in tocHyperLinks)
    link.ScreenTip = link.DisplayResult;

PdfSaveOptions saveOptions = new PdfSaveOptions()
{
    Compliance = PdfCompliance.PdfUa1,
    DisplayDocTitle = true,
    ExportDocumentStructure = true,
};
saveOptions.OutlineOptions.HeadingsOutlineLevels = 3;
saveOptions.OutlineOptions.CreateMissingOutlineLevels = true;

doc.Save(ArtifactsDir + "WorkingWithPdfSaveOptions.UpdateScreenTip.pdf", saveOptions);