However I have never received any pdf copy of certification acquired.
To answer this specific question read this thread from a few years ago --> Re: Getting a hard copy certificates from oracle
which is answered "officially" by Oracle (Brandye Barrington-Oracle)
But to answer it quickly.....Oracle NO LONGER sends out hard-copy certificates. Everything is all digital encrypted online badges verified via YourAcclaim.com
I'm not familiar with this certification. Can you provide a link to where you found this certification?
Oracle Certification Program