big problem when a 400 pages report export to pdf ,the PDF file is very big(60M) and long time

[liufeijin]

when export a big report LimeReport will make a big file and cost long tiem.
So i want to reduce down resolution when save to PDF like below

but there is no any QPdfWriter class and QtPdf in LimeReport , so i can't do the change.
Cloud anybody give me some instruction ?

[liufeijin]

i search on web and get below tips

QPrinter printer(QPrinter::HighResolution);
qreal resolutionFactor = 1200 / printer->resolution();
QPainter painter;
painter.begin(&printer);
painter.scale(1 / resolutionFactor, 1 / resolutionFactor);
printPage(&painter); // This method should implement printing itself
painter.end();

seems use painter.scale to reduce down print out size.
but i can't find the place where to be added in Limreport.

this is no effect. must be change the pdf printer driver.

[liufeijin]

@fralx i ask the pdf resolution problem on qt forum
Somebody give me answer , change to use

will can reduce down the pdf size by setresolution.
but saw your code all are use printer, cloud you make a branch to use QPainter?