The first category is a simple digital signature as it does not include the encryption process. There are three types of digital signatures, as explained below: Simple Digital Signature Part 2: What are Types of Digital Signatures?īefore jumping into how to add a digital signature in PDF, it's important to know the types of digital signatures. This certificate includes the information of the public key of the organization along with its related information. Role of Digital Certificates: Digital Certificates are distributed by CA (Certified Authority) to the people or organizations as a driver’s license to own the certificate.They provide digital certificates to individuals or organizations to validate their identification. PKI: PKI stands for Public Key Infrastructure, which are the sets of programs, software, individuals, and policies that work in the distribution of the public keys.The public key is used by the receiver of a digitally signed document to check its validity, whereas the private key is kept confidential by the sender to sign the document. Use of Public and Private Keys: Every digital sign includes two keys that are public and private keys.The receiver of the digitally signed PDF decrypts the hash through a Public key to check its authenticity. This cryptographic hash is encrypted through a mathematical algorithm. Cryptographic Hash: When a user digitally signs a PDF, it forms a cryptographic hash.By reading the following points, you can fetch a clear idea about how digital signatures work on PDF. It is also used in emails, online transactions, and digital communication to validate security and privacy. How Does it Work on PDF?ĭigital signatures have widely opted in Western countries such as America, Europe, and the Gulf States as a legally binding system.

The main purpose of digital signatures is to create a sense of trust between the consumers, business organizations, and stakeholders. It uses a mathematical algorithm to ensure the transparency of digital content and transactions. Free Download Part 1: What is Digital Signature, and How Does it Work on PDF?ĭigital signatures are the type of electronic signatures that are used to testify the legality or verification of a particular individual or organization.

How to add e signature in pdf