Once signed, if theĭocument is modified in any way the signature will no longer be considered valid. The signer’s certificate or issuing third-party Certificate Authority will need to be trusted by the user receiving the PDF in order for the signature to be considered valid. Is unique to the signer so it cannot be forged. The difference between a digital and hand written signature is that a digital signature contains encrypted information that Digital SignaturesĪ Digital Signature is similar to actually signing a physical document in that it identifies the person signing the document.
A digital signature (which may also have a graphical representation) contains a unique encrypted ID to verify its authenticity. An electronic signature is a graphical representation of a signature on pen and paper such as an image or drawing. Note: It's important to also understand that a digital signature is not the same as an electronic signature. You can either Create a New Digital ID or Import A Digital ID to be used when digitally signing documents. In order to sign documents, you must first have aĭigital ID. It's important to understand the differences between each type of digital signature prior to applying one to a PDF. PDF Studio supports both digital signatures and certified digital signatures.
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