Whopity, have you tried printing out the ridiculous new 'Certificate of Revalidation' panel of the 16-panel 2-sided A4-to-A7 origami which EASA calls a licence? The space for the Examiner's certificate number and signature are each 11 x 8 mm in size. Interestingly, the Examiner doesn't need to include his/her name.....
No, I have better things to do, but at first glance I found 4 fundamental errors in the example licence!