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I don't see any support for tagged PDF output. That's important for accessibility, particularly for screen reader users.

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Good point! There's an open issue regarding that, and it seems to be due to the fact that under the hood, QuestPDF uses Skia which itself lacks support for tagged PDF's: https://github.com/QuestPDF/QuestPDF/issues/193

This could be a SkiaSharp limitation. This thread made me interested in Skia and I started looking around their site and did a quick search for "tagged PDF" on their Milestone Release Notes.

If they understand the same thing with tagged PDF as what is being discussed in this thread, that page says that "Add new APIs to add attributes to document structure node when creating a tagged PDF.", which could be a milestone as old as of 2020 [0]

[0] https://skia.org/docs/user/release/release_notes/#milestone-...

The .NET version of PDFjet supports tagged PDFs:

https://github.com/edragoev1/pdfjet

so do the Java, Swift and Go versions.

While the docs are somewhat sparse, Example_45 shows how to create PDF/UA compliant PDF.

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