Error converting odt to java with odftoolkit

Question

This is my first time with odftoolkit and I'm having an extrange error. I have an .odt template and when converting to pdf it looses data.

Example:

    **Title 1:**
Text 1.
    **Title 2:**
Text 2.

The thing is that cnverted PDF only have Text1 / text2 and nothin about the titles. Both are the same font but different heigth.

public static File convertir(File informe) throws Exception{
    logger.entry();
    File informePdf = null;
    String filePath = "";
    try{
        InputStream is = new FileInputStream(informe);
        filePath = informe.getAbsolutePath().replace(".ODT",".PDF");
        informePdf = new File(filePath);
        OutputStream os = new FileOutputStream(informePdf);
        ConversorPDF conversor = new ConversorPDF(is, os, false, true);
        conversor.convert();
        logger.trace("Convertido a PDF correctamente");
        return informePdf;
    }catch ( Exception e){
        logger.catching(e);
        throw e;
    }
}

Sorry for my english ;)