Increase overall Size off PDF

Hello there! ??

We’re having some issues with the PDF’s generated by the plugin. We feel, that the overall layout is to small, when the print the invoice PDF’S. We’re found out, that if we manually adjust the printer settings to 125% in size, when printing these pdf’s out, it fits the whole A4. Is there anyway that we could fix this within the plugin our self? (Yes, we may perhaps need eyeglasses, we dont doubt that) but the issue is, that the PDF dont fills out the whole paper.