OfficeManager officeManager = null;
        try {
            officeManager = new DefaultOfficeManagerConfiguration().buildOfficeManager();
            if(officeManager==null){
                log.error("Can not initiate officeManager: source file = " + source.getAbsolutePath() + ", target file  " + target.getAbsolutePath());
                return false;
            } 
            officeManager.start();
            OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager);
            converter.convert(source, target);
        }catch (Exception e){
            log.error("Can not convert: source file = " + source.getAbsolutePath() + ", target file  " + target.getAbsolutePath(), e);
            return false;
        } finally {
            if(officeManager!=null)
                officeManager.stop();
            
        }