Does anyone know if it is possible to use the umbraco web services in v.3.0.6 to create a new document but not publish it?

Currently whatever I try to do it always publishes the documents and I just want to create new documents that are not published so an end user then has to manually publish them after editing.

This is my code:

var client = new documentServiceSoapClient();
var newDocCarrier = new documentCarrier
{
    ParentID = parentId,
    Name = qualName,
    DocumentTypeID = docTypeId
};

// I am not adding any properties in this example... but they would be below.
var docProperties = new ArrayOfDocumentProperty();
newDocCarrier.DocumentProperties = docProperties;

int newDocId = client.create(newDocCarrier, "username", "password");

This creates a new document which is always published.

So is it possible to do exactly the same, but for the document to be "unpublished" so that an end user has to manually publish it after reviewing.

Thanks in advance!

Chris