Why QPrinter always generates PDF docs with the same size?

[SkripT]

Does anybody knows if there's some another way to print an image using QPrinter than painting it with QPainter. I'm almost sure that the problem that the final doc has a big size is caused by painting the image using QPainter. I think it "stores" it like if the images has no compression or something similar... All I want is have the same image than the original in the final PDF doc filling all the page space.