// Create a new workbook and access the default worksheet
Workbook workbook = new Workbook();
IWorksheet sheet = workbook.getWorksheets().get(0);

// Set text.
sheet.getRange("A1:G10").setValue("Text");

// Add picture in worksheet.
FileInputStream stream = null;
try 
{
    stream = new FileInputStream("Pictures/logo.png");
} 
catch (FileNotFoundException e) 
{
    e.printStackTrace();
}
try 
{
   IShape picture = sheet.getShapes()
   .addPicture(stream,ImageType.PNG,20,20,395,60);
} 
catch (IOException ioe) 
{
}
        
// Add header graphic.
FileInputStream stream1 = null;
try 
{
    stream1 = new FileInputStream("Pictures/logo.png");
} 
catch (FileNotFoundException e) 
{
    e.printStackTrace();
}
sheet.getPageSetup().setCenterHeader("&G");
sheet.getPageSetup().getCenterHeaderPicture().setGraphicStream(stream1,ImageType.PNG);
sheet.getPageSetup().getCenterHeaderPicture().setWidth(100);
sheet.getPageSetup().getCenterHeaderPicture().setHeight(13);

// Set print without graphics in page content area.
sheet.getPageSetup().setDraft(true);

// Save to a pdf file
workbook.save("Draft.pdf", SaveFileFormat.Pdf);