multiple plots on multple pages

[giusepped]

I would like to print two plots on 2 different pages
I tried

qwtVan->print(printer,filter);
	printer.newPage();
	qwtPlot->print(printer,filter);

qwtVan->print(printer,filter);
	printer.newPage();
	qwtPlot->print(printer,filter);

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but the outpute pdf contains only the last plot (qwtPlot).
Any suggestion?