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            Returns the signature field that was used
to certify the PDF document and shell PDF forms.
            
           
            For example, your application must retrieve the certifying signature
from a PDF document and validate it. The PDF document may have more
than one digital signature on it. You use the Get Certifying Signature
Field operation to retrieve the signature field that contains the
certifying signature.
            
           
            For information about the General and Route Evaluation property
groups, see
            
             Common operation properties
            
            .
            
           
          
           
            
           
           
            Input properties
           
           
            
             Property to specify a certified PDF document.
             
            
             
              
             
             
              Input PDF
             
             
              A
              
               
                document
               
              
              value
that represents a PDF document that contains a signature field that
contains a certified signature.
              
             
              If you provide a literal value,
clicking the ellipsis button opens the Select Asset dialog box.
(See
              
               About Select Asset
              
              .)
              
             
            
           
          
           
            
           
           
            Output properties
           
           
            
             Property to specify a signature field.
             
            
             
              
             
             
              Certifying Signature Field Result
             
             
              The location in the process data
model to store the information about the certified signature field.
The data type is
              
               
                PDFSignatureField
               
              
              .
              
             
            
           
          
          
          
           
          
          
          
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