Why the help document does not have a complete example of HTML? I think it's completely guesswork to use it. It seems that it's not completely compatible with html4

[mrjj]

Hi
You mean like this ?
https://forum.qt.io/topic/78143/export-a-qtablewidget-in-pdf

[JonB]

@duncan98
Your first decision is whether you want to print as a QTableWidget, with how that appears, or whether you want to export its content to a QTextDocument and print as a generic table. I have done both.

[duncan98]

@JonB
How can qtablewidget be printed directly?

[duncan98]

This post is deleted!

[JonB]

@duncan98
What about the accepted solution in https://stackoverflow.com/questions/45467942/how-can-i-print-a-qwidget-in-qt ? The point is QWidget::render() to a painter/paint device which is the desired QPrinter. See https://doc.qt.io/qt-5/qtprintsupport-index.html#printing-widgets.

If you decide you want to do it by generating an HTML document into a QDocument off the QTableWidget after all, see alternatively e.g. https://stackoverflow.com/questions/56605601/using-qt5-how-can-i-print-a-qtablewidget-and-scale-a-table-to-fit-onto-one-side. I went for this approach off any QTableView/model with rows & columns myself, so it's generic, I can use stylesheets for printing, I can export to PDF/CSV/XLSX, etc. One issue about printing the QTableWidget as-is is that you get e.g. the column widths/truncation etc. you see on the screen, which may not be desirable, depending on your usage.