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Returns the collection of digital signatures attached to the workbook.
The returned ISignatureSet provides access to the signatures in the document, including signature lines and non-visible signatures.
public ISignatureSet Signatures { get; }
Public ReadOnly Property Signatures As ISignatureSet
workbook.Signatures.AddSignatureLine(worksheet, 100.0, 50.0);
ISignatureSet signatures = workbook.Signatures;
if (signatures.Count > 0)
{
ISignature signature = signatures[0];
}