Help creating online signature and being able to "submit" once signature complete

Hi,

I have an existing .pdf that is fillable with the exception of the signature - how can I create the box for electronic signature so the recipient can "sign" with their actual signature then be able to "submit" the completed form, with electronic signature, via email?

I know how to do it by applying the "digital signature" but we need an actual signature - not digital. 

Thanks

Kim