Digital Signatures have come a long way from even a decade ago. In 1977 Ronald Rivest, Adi Shamir and Len Adleman invented the RSA algorithm, which was the first algorithm that was used to produce an early version of a digital signature. Then, in 1994, the US government made the Digital Signature Standards (DSS), introduced by the US National Security Agency (NSA), the standard for electronic document authentication. For the first time, digital signatures became a commonly accepted method of signing.
Read about digital signatures and how it has become an important part of PDF Technology in the past 20 years on Foxit SDK’s Blog
