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When a signer electronically signs a document, the signature is created using the signer's private key, which is always securely kept by the signer. The mathematical algorithm acts like a cipher, creating data matching the signed document, called a hash, and encrypting that data.

Protect PDF from Copying and Editing Go to the "Protect" tab, and click the "Set Password" button. Then select the "Permission Password" option. Uncheck "Enable copying of text, images and other content" and enter your desired password. Once confirmed, click on the "Save" button to apply, and save your PDF file.

Passwords are a great method but consider implementing a 2-factor authentication system. That way, the public cannot have access to your e-signature without your password and your second authentication process.

Encryption. Encryption is a process used to protect digital data by transforming data into a code that is unreadable to anyone except the intended recipient. In the context of digital signatures, encryption helps to ensure that the digital signature is only readable by the signee and the recipient.

A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered. The following is an example of a signature line.

Digital Signature: What's the Difference? The basic difference between a digital certificate and a digital signature is that the certificate attaches the digital signature to an entity, while the digital signature must guarantee the security of the data or information from the moment it is sent.

For instance, you could protect the document by restricting editing. (To start, display the Review tab of the ribbon and click the Restrict Editing tool.) You could also save your document out in PDF format, which would stop the individual signature image from being selected.

For instance, the main purpose of a digital signature is to secure the document and verify that it hasn't been tampered with, altered, or forged. However, an electronic signature is used to indicate that a signer is actively and knowingly entering into a binding agreement or contract.

A digital signature is created by applying a private key, known only to the creator of the document, to the document, generating a unique signature. As long as the private key remains private, only the holder of the key can modify the document, ensuring the integrity of the contents.