65 Pa. Stat. § 65.1
Whenever any officer of any county of the first class or of any city of the first class is required or authorized by law or otherwise to record, copy or recopy any document, plat, paper or instrument of writing, he may do so by any photostatic, photographic, microphotographic, microfilm, microcard, miniature photographic, optical, electronic or other process which accurately reproduces the original and forms a durable medium for recording, storing and reproducing the original in accordance with standards, policies and procedures for the creation, maintenance, transmission or reproduction of images of records not less than those approved by the National Institute of Standards and Technology. Any document, plat, paper or instrument of writing within the scope of this section and which previously has been recorded, copied or recopied also may be reproduced by processes authorized by this section.
65 P.S. § 65.1