GrapeCity.Documents.Excel.ISignatureSet.AddNonVisibleSignature

AddNonVisibleSignature Method

AddNonVisibleSignature()

Creates a signature packet when digitally signing a document.

Use this method to add a non-visible signature to the workbook's ISignatureSet. Unlike AddSignatureLine(IWorksheet, double, double, double, double), the returned signature is not associated with a visible signature line in a worksheet. The signature will be discarded if you save the workbook without signing it.

Declaration

ISignature AddNonVisibleSignature()

Function AddNonVisibleSignature() As ISignature

Returns

Type	Description
ISignature	The created non-visible ISignature.

Examples

ISignature signature = workbook.Signatures.AddNonVisibleSignature();
bool isSignatureLine = signature.IsSignatureLine;
ISignatureSet signatures = signature.Parent;