Why QPrinter always generates PDF docs with the same size?

[SkripT]

As I commented before I have set the option in PDFCreator to compress the PDF images in color and grayscale to "JPEG-Maximum" but it's like QPrinter doesn't use them because the final document is always the same (PDFCreator is the only driver that I have installed to do the conversion, so it has to use it ) Maybe QPrinter with QPainter uses some particular method to "insert" the images?

PD: I use Qt4.1.1