How to get back the Blue Line, Date and Name under the signature?

Hi Ákos27298195gpqf,

Thank you for reaching out.

You may enable the option under Signature Preferences in Acrbat account settings.

You may take help of the steps suggested in the following help page: https://helpx.adobe.com/sign/kb/to-enable-disable-name-date-below-the-signature.html. 

Let us know if you have any questions.

Thanks,

Meenakshi