Digitally signing a PDF is the process of adding a digital signature to a Portable Document Format (PDF) file. This signature verifies the authenticity and integrity of the document, ensuring that it has not been tampered with. For instance, in the business world, digital signatures are commonly used to sign contracts, agreements, and other important documents.
Digital signatures offer numerous benefits, including enhanced security, improved efficiency, and increased legal validity. Historically, the development of digital signatures can be traced back to the early days of cryptography, with the first practical implementation emerging in the 1970s.
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