Hi,
Your certification(s) should show up on your Certifications tab. Below is direct link to your certification tab:
https://learn.microsoft.com/en-us/users/me/credentials?tab=credentials-tab
Under your certification you can click View certification details and then once you get to the certification page you may click Print, select Save as PDF, under More setting uncheck Headers and footers, etc. This is with Chrome browser.
If you don't see your certification on your Certifications tab please ask your question in the Microsoft Credentials forum using link below. There are support moderators over there that will respond to your question in 1 business day and can assist:
https://trainingsupport.microsoft.com/en-us/newthread?threadtype=Questions&forum=mcp
Please click Accept Answer and upvote if above was helpful.
Thanks.
-TP