Retrieving Signature Field Names

To retrieve signature field names, perform the following tasks:

1. Include project files.

2. Create a Signature client.

3. Get the PDF document that contains signature fields.

4. Retrieve the signature field names.

Retrieve signature field names by using the Signature API (Java):

1. Include project files

   Include client JAR files, such as the adobe-signatures-client.jar, in your Java project’s classpath.

2. Create a Signature client

   • Create a ServiceClientFactory object that contains connection properties.

   • Create a SignatureServiceClient object by using its constructor and passing the ServiceClientFactory object.

3. Get the PDF document that contains signature fields

   • Create a java.io.FileInputStream object that represents the PDF document that contains signature fields by using its constructor and passing a string value that specifies the location of the PDF document.

   • Create a com.adobe.idp.Document object by using its constructor and passing the java.io.FileInputStream object.

4. Retrieve the signature field names

   • Retrieve the signature field names by invoking the SignatureServiceClient object’s getSignatureFieldList method and passing the com.adobe.idp.Document object that contains the PDF document that contains signature fields. This method returns a java.util.List object, in which each element contains a PDFSignatureField object. Using this object, you can obtain additional information about a signature field, such as whether it is visible.

   • Iterate through the java.util.List object to determine if there are signature field names. For each signature field in the PDF document, you can obtain a separate PDFSignatureField object. To obtain the name of the signature field, invoke the PDFSignatureField object’s getName method. This method returns a string value that specifies the signature field name.

Retrieve signature field names using the Signature API (web service):

1. Include project files

   Create a Microsoft .NET project that uses MTOM. Ensure that you use the following WSDL definition: http://localhost:8080/soap/services/SignatureService?WSDL&lc_version=9.0.1.

   Hinweis: Replace localhost with the IP address of the server hosting LiveCycle.

2. Create a Signature client

   • Create a SignatureServiceClient object by using its default constructor.

   • Create a SignatureServiceClient.Endpoint.Address object by using the System.ServiceModel.EndpointAddress constructor. Pass a string value that specifies the WSDL to the LiveCycle service (for example, http://localhost:8080/soap/services/SignatureService?WSDL). You do not need to use the lc_version attribute. This attribute is used when you create a service reference.)

   • Create a System.ServiceModel.BasicHttpBinding object by getting the value of the SignatureServiceClient.Endpoint.Binding field. Cast the return value to BasicHttpBinding.

   • Set the System.ServiceModel.BasicHttpBinding object’s MessageEncoding field to WSMessageEncoding.Mtom. This value ensures that MTOM is used.

   • Enable basic HTTP authentication by performing the following tasks:

     • Assign the LiveCycle user name to the field SignatureServiceClient.ClientCredentials.UserName.UserName.

     • Assign the corresponding password value to the field SignatureServiceClient.ClientCredentials.UserName.Password.

     • Assign the constant value HttpClientCredentialType.Basic to the field BasicHttpBindingSecurity.Transport.ClientCredentialType.

     • Assign the constant value BasicHttpSecurityMode.TransportCredentialOnly to the field BasicHttpBindingSecurity.Security.Mode.

3. Get the PDF document that contains signature fields

   • Create a BLOB object by using its constructor. The BLOB object is used to store the PDF document that contains signature fields.

   • Create a System.IO.FileStream object by invoking its constructor and passing a string value that represents the file location of the PDF document and the mode in which to open the file.

   • Create a byte array that stores the content of the System.IO.FileStream object. You can determine the size of the byte array by getting the System.IO.FileStream object’s Length property.

   • Populate the byte array with stream data by invoking the System.IO.FileStream object’s Read method and passing the byte array, the starting position, and the stream length to read.

   • Populate the BLOB object by assigning its MTOM field the byte array contents.

4. Retrieve the signature field names

   • Retrieve the signature field names by invoking SignatureServiceClient object’s getSignatureFieldList method and passing the BLOB object that contains the PDF document that contains signature fields. This method returns a MyArrayOfPDFSignatureField collection object where each element contains a PDFSignatureField object.

   • Iterate through the MyArrayOfPDFSignatureField object to determine whether there are signature field names. For each signature field in the PDF document, you can obtain a PDFSignatureField object. To obtain the name of the signature field, invoke the PDFSignatureField object’s getName method. This method returns a string value that specifies the signature field name.