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Editorial Team
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Asked: 2026-05-30T11:37:50+00:00

I’m writing an application that prints addresses directly onto envelopes. I’m using QTextDocument and

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I’m writing an application that prints addresses directly onto envelopes. I’m using QTextDocument and the problem is that its method print() adds the page number, which is incorrect in envelopes.

Some code, in case you need it:

void MainWindow::print()
{
    QString addressText = textEdit->document()->toPlainText();
    envelopeDocument = new QTextDocument(this);
    printer.setResolution(QPrinter::HighResolution);
    printer.setPrinterName("OKI B6200(PCL6)");
    printer.setOrientation(QPrinter::Landscape);
    QFont font("Trebuchet MS");
    switch (envelopeComboBox->currentIndex()){
    case 0:
        font.setPointSize(12);
        envelopeDocument->setDefaultFont(font);
        envelopeDocument->setPlainText(addressText);
        printer.setPaperSize(QSizeF(114,225),QPrinter::Millimeter);
        printer.setPageMargins(120,60,20,15,QPrinter::Millimeter);
        break;
    case 1:
        font.setPointSize(14);
        envelopeDocument->setDefaultFont(font);
        envelopeDocument->setPlainText(addressText);
        printer.setPaperSize(QSizeF(184,262),QPrinter::Millimeter);
        printer.setPageMargins(140,100,20,20,QPrinter::Millimeter);
        break;
    case 2:
        font.setPointSize(16);
        envelopeDocument->setDefaultFont(font);
        envelopeDocument->setPlainText(addressText);

        printer.setPaperSize(QSizeF(227,324), QPrinter::Millimeter);
        printer.setPageMargins(170,120,30,40,QPrinter::Millimeter);
        break;
    }

    QPrintPreviewDialog preview (&printer,this);
    preview.setWindowFlags(Qt::Window);
    connect(&preview, SIGNAL(paintRequested(QPrinter *)),SLOT(printPreview(QPrinter *)));
    preview.exec();
}

void MainWindow::printPreview(QPrinter *p)
{
    envelopeDocument->print(p);
}

Thank you!

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1 Answer

  1. Editorial Team

    You can try the following code, it might help you…

    QPrinter printer(QPrinter::ScreenResolution);
printer.setPaperSize(QPrinter::A4);
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setOutputFileName( fileName );
// printer.setPageMargins(0.925, 0.8, 0.5, 0.8, QPrinter::Inch);

QSizeF paperSize;
paperSize.setWidth(printer.width());
paperSize.setHeight(printer.height());
document->setHtml(html);
document->setPageSize(paperSize); // the document needs a valid PageSize
document->print(&printer);

    When you refer the source code of print(), then you will recognize that the QPointF pageNumberPos is only defined when there is no valid QTextDocument.pageSize().
    In printPage() the page number will be just printed, if pageNumberPos is not null.
    So just set a valid QTextDocumtent.pageSize() and you have no page numbers on your printed document.

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