It is possible to add AccessibilityProperties to the Table object itself. The Summary needs to be added through a PdfDictionary
PdfDictionary attr = new PdfDictionary();
attr.put(new PdfName("Summary"), new PdfString("Info about the table"));
table.getAccessibilityProperties().addAttributes(new PdfStructureAttributes(attr));
It is possible to add AccessibilityProperties to the Table object itself. The Summary needs to be added through a PdfDictionary
ApiDocs can be found here
I tried the solution above, but unfortunately Adobe's Summary Accessebility Check failed.
According to the specification, the acceesibility properties' structure should be a bit different. One should use the next line: