Signatures to this Agreement transmitted by facsimile, telecopy or portable document format (.pdf) shall be binding on the Party transmitting such signatures and such Party shall not use as a defense against the enforceability of this Agreement the fact that such signature so transmitted is not original.  This Agreement may be signed in counterparts, each of which shall be enforceable against the Party executing and delivering same, and all of which shall constitute a single and enforceable agreement.  Any facsimile or portable document format (PDF) signature shall be replaced with an original signature as promptly as practicable .