A digital signature uniquely identifies the originator of digitally signed data and also ensures the integrity of the signed data against tampering or corruption. So digital signatures are commonly used to identify electronic entities for online transactions, just like handwritten signatures or physical thumbprints are commonly used to identify people for legal proceedings or transactions.
To Apply Digital Signature to PDF:
Launch Advanced Scan to PDF Free and click “Tools” tab. Then click “Apply a Digital Signature”. Enter information in each box:
Input File Name – click “Browse” to select the PDF file you want to apply a digital signature.
Open Password – enter the password if the PDF file is encrypted.
Signature Field Name – the name of the signature field to sign. If the field with this name does not exist it will be created.
PFX file name – the path and name of the PKCS#12 certificate/private key file (.pfx file).
PFX password – the password to open the PFX file.
Reason – an optional string indicating the reason for signing.
Location – an optional string indicating the location that the signing was done.
Contact Information – an optional string indicating the contact information of the signer.