Integrity-a valid digital signature on a document certifies that the document hasn’t been altered in transit from the one who signed it to the recipients.Authentication-a digital signature on a document authenticates the identity of the person who signed it. ![]() Uses of digital signatures for documentsĪ digital signature is a versatile method to sign documents in electronic form, which is used to provide the following: This message can then be decrypted by anyone else with a matching public key for verification. From a technology standpoint, a digital signature is a message encrypted by the signer using a secret private key, which associates itself with the document and the signer. A digital signature is an equivalent for digital documents, such as PDFs, of a wet-ink signature on paper documents. Once people started to rely on digital document exchange, the need for a digital means to confirm and verify authenticity of the documents arose. In this article we’ll consider what is a digital signature PDF can be signed with, and how to use FineReader PDF 15 to apply digital certificates, create and verify digital signatures for your documents. ![]() ![]() When working with digital documents such as PDFs, people often ask how to create a digital signature and how to add digital signature to PDF.
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