question about generatePDFOutput api

When I attempt to invoke the generatePDFOutput api I get a "OutputService not found" exception. Do I need to install the Output ES component.
Am using Livecycle ES 8.

Thanks

OutputResult outputDocument = aClient.generatePDFOutput(
TransformationFormat.PDF,
formName,
contentRoot,
outputOptions,
pdfOptions,
xmlDocData
);

From log file

2008-01-02 20:55:20,391 [[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] ERROR - Exception occurred ALC-DSC-012-000: com.adobe.idp.dsc.registry.ServiceNotFoundException: Service: OutputService not found. ALC-DSC-012-000: com.adobe.idp.dsc.registry.ServiceNotFoundException: Service: OutputService not found.
at com.adobe.idp.dsc.registry.service.impl.ServiceRegistryImpl.getServic e(ServiceRegistryImpl.java:978)
at com.adobe.idp.dsc.registry.service.impl.ServiceRegistryImpl.getHeadAc tiveConfiguration(ServiceRegistryImpl.java:836)
at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.resolveConfiguration( ServiceEngineImpl.java:146)
at com.adobe.idp.dsc.provider.impl.ejb.receiver.EjbReceiverBean.invoke(E jbReceiverBean.java:131)
at com.adobe.idp.dsc.provider.impl.ejb.receiver.Invocation_fpvhue_EOImpl .invoke(Invocation_fpvhue_EOImpl.java:60)
at com.adobe.idp.dsc.provider.impl.ejb.receiver.Invocation_fpvhue_EOImpl _WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:17 4)
at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef .java:335)
at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef .java:252)
at com.adobe.idp.dsc.provider.impl.ejb.receiver.Invocation_fpvhue_EOImpl _922_WLStub.invoke(Unknown Source)
at com.adobe.idp.dsc.provider.impl.ejb.EjbMessageDispatcher.doSend(EjbMe ssageDispatcher.java:137)
at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(A bstractMessageDispatcher.java:57)
at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:2 08)
at com.adobe.livecycle.output.client.OutputClient.invokeRequest(OutputCl ient.java:380)
at com.adobe.livecycle.output.client.OutputClient.generatePDFOutput(Outp utClient.java:121)
at com.wellsfargo.DocGen.DocGenBean.ProcessDocument(DocGenBean.java:505)
at com.wellsfargo.DocGen.DocGenBean.GenDocs(DocGenBean.java:338)
at com.wellsfargo.DocGen.DocGen_7hko3k_EOImpl.GenDocs(DocGen_7hko3k_EOIm pl.java:60)
at com.wellsfargo.DocGen.DocGen_7hko3k_EOImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:550)
at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef .java:224)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:440)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticate dSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java: 147)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav a:436)
at weblogic.rmi.internal.BasicServerRef.access$300(BasicServerRef.java:5 8)
at weblogic.rmi.internal.BasicServerRef$BasicExecuteRequest.run(BasicSer verRef.java:975)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)