Widget.render() function troubles

[FoleyX90]

What I'm trying to do is directly print a widget.
How I have it right now is:

QPrinter p(QPrinter::HighResolution);
p.setPageSize(QPrinter::Letter);
p.setFullPage(true);
this->ui->tabPersonal->render(&p);

QPrinter p(QPrinter::HighResolution);
p.setPageSize(QPrinter::Letter);
p.setFullPage(true);
this->ui->tabPersonal->render(&p);

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It does print, but it is TINY! Any ideas?