Add a method on the Document object to allow converting a blob given an xpath.
If no xpath defined, default to the main blob (blobholder:0).
This method will use the synchronous conversion API on the @convert adapter.
Add a method on the Document object to allow converting a blob given an xpath.
If no xpath defined, default to the main blob (blobholder:0).
This method will use the synchronous conversion API on the @convert adapter.