That's right, the property docx4j.Log4j.Configurator.disabled was only there to prevent automatic config of log4j.
Now that that's gone, its just a matter of configuring slf4j to your liking; see generally http://www.slf4j.org/
To totally turn off logging, see http://stackoverflow.com/a/8748518/1031689
in answer to http://stackoverflow.com/questions/2372 ... from-slf4j
(and make sure the only other slf4j related jar file on your classpath is slf4j-api)
If you want to selectively configure logging, well, the easiest way is to include slf4j-log4j12 and https://github.com/plutext/docx4j/blob/ ... /log4j.xml