@Override
  protected void build(APdfContainerElement pdf) {
    Sprint sprint = project.getCurrentSprint();

    pdf.paragraph().text("Sprint Backlog", headerFonts[0]);

    pdf.nl();
    pdf.paragraph().text("Burndown", headerFonts[1]);
    pdf.image(BurndownChart.createBurndownChartAsByteArray(sprint, 1000, 500))
        .setScaleByWidth(150f);

    pdf.nl();
    pdf.paragraph().text("Stories", headerFonts[1]);
    List<Requirement> requirements = new ArrayList<Requirement>(sprint.getRequirements());
    for (Requirement req : requirements) {
      if (req.isClosed()) continue;
      pdf.nl();
      pdf.paragraph().text(req.getReferenceAndLabel(), headerFonts[3]);
      wiki(pdf, req.getDescription());
      FieldList fields = pdf.fieldList().setLabelFontStyle(fieldLabelFont);
      if (req.isTestDescriptionSet()) wiki(fields.field("Test"), req.getTestDescription());
      if (req.isEstimatedWorkSet()) fields.field("Estimated work").text(req.getEstimatedWork());
    }
  }