Digitally signed pdf error

I have successfully registered the my Digital signature thru USB device in epfo site and when i tried to verify the signed pdf in pmrpy website it is prompting as "NOT Supported yet". My java version is in latest versione. browser is in up to date, adobe pdf is up to to date. Please some one can suggest to clear this error.

Sir,
Kindly check the status of your registered digital signature on employer portal whether it is approved by epfo office or not. if not submit the letter to epfo office in triplicate copies