LoadOptions.Password property

Gets or sets the password for opening an encrypted document. Can be null or empty string. Default is null.

public string Password { get; set; }


You need to know the password to open an encrypted document. If the document is not encrypted, set this to null or empty string.


Shows how to sign encrypted document file.

// Create an X.509 certificate from a PKCS#12 store, which should contain a private key.
CertificateHolder certificateHolder = CertificateHolder.Create(MyDir + "morzal.pfx", "aw");

// Create a comment, date, and decryption password which will be applied with our new digital signature.
SignOptions signOptions = new SignOptions
    Comments = "Comment",
    SignTime = DateTime.Now,
    DecryptionPassword = "docPassword"

// Set a local system filename for the unsigned input document, and an output filename for its new digitally signed copy.
string inputFileName = MyDir + "Encrypted.docx";
string outputFileName = ArtifactsDir + "DigitalSignatureUtil.DecryptionPassword.docx";

DigitalSignatureUtil.Sign(inputFileName, outputFileName, certificateHolder, signOptions);

See Also