[iText-questions] Problem while converting a tiff to pdf

[HASSANI Maher SG/DIT]

Hello,

i'm using this program to convert a tiff file to a pdf on the fly, but it doesn't work, can you help please :

 

 

protected ByteArrayOutputStream tiff2Pdf(
  final HttpServletRequest req, File file,
  final ServletContext ctx)
  throws DocumentException{
   
 
  ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
  
    
  // creation of the document with a certain size and certain margins
  Document document = new Document(PageSize.A4, 50, 50, 50, 50);
  //Document.compress = false;
  try {
   // creation of the different writers
   PdfWriter writer = PdfWriter.getInstance(document, baosPDF);
   
   SeekableStream s = new FileSeekableStream(file);
   
   TIFFDecodeParam param = null;
   
   ImageDecoder dec = ImageCodec.createImageDecoder("tiff", s, param);
   
   System.out.println("Number of images in this TIFF: " + dec.getNumPages());
   
   // Which of the multiple images in the TIFF file do we want to load
   // 0 refers to the first, 1 to the second and so on.
   int total = dec.getNumPages();
   document.open();
   PdfContentByte cb = writer.getDirectContent();
   for (int k = 0; k < total; ++k) {
    RenderedImage ri = dec.decodeAsRenderedImage(k);
    Raster ra = ri.getData();
    BufferedImage bi = new BufferedImage(ri.getColorModel(),
        Raster.createWritableRaster(ri.getSampleModel(),
        ra.getDataBuffer(), null), false, new Hashtable());

 

    Image img = Image.getInstance(bi, null, true);
    img.scalePercent(72f / 200f * 100);
    img.setAbsolutePosition(0, 0);
    System.out.println("Image: " + k);
    cb.addImage(img);
    document.newPage();
   }
   document.close();
  }
  catch (Exception de) {
   de.printStackTrace();
   //System.err.println(de.getMessage());
  }
 
  return baosPDF;
 }