Method Verify
    Namespace TallComponents.PDF.Forms.Fields
        Class SignatureField
Checks if the Signature field is valid (verified), based on the supplied factory.
False is returned if the signature is not signed. Note that the document can be modified after signing, meaning that an update is append to this document.
Syntax
        public 
        
Boolean
         Verify(
        
    ISignatureHandlerFactory
         handlerFactory
        )
    
    Returns
Boolean
    Returns if this signature field is valid or not.
Parameters
    ISignatureHandlerFactory
 handlerFactory
                The factory used to retrieve the correct signature handler.