Why doesn't the certificate fit when printing? The certificate or PDF doesn't fit perfectly on the paper

Is it a problem with edX? Certificates don’t fit perfectly on the paper whatever configurations you choose. It doesn’t look professional in my opinion. How can it be fixed?

It looks likes this: https://image.slidesharecdn.com/harvardxph125-180408124846/95/harvard-x-ph1252x-certificate-edx-1-638.jpg?cb=1523191793