Esigning a PDF, or digitally signing a Portable Document Format (PDF) file, involves applying a legally binding electronic signature to a document to verify its authenticity and prevent unauthorized alterations.
In today’s digital landscape, esigning has become increasingly relevant, offering convenience, security, and legal compliance in various fields, from business contracts to healthcare records. Its origins can be traced back to the 1990s, with the development of digital signature technology based on public-key cryptography.