It looks like the position in your PDF is not correct so ideally you would fix this upstream. The position in the PDF actually looks slightly higher (more wrong) than your printed sheet. So unless the label sheets are asymmetrical and you loaded the paper 180 degrees off, whatever made that PDF isn't preparing it for the label sheets you are using. You could try to change that, or you could fiddle with various print settings. Looks like the labels are 4 up so you might get away with scaling it down further when printing.