Hi

I have a problem when I generate a document with a water mark in itext.

The following code shows as I make it

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....
PdfReader reader = new PdfReader ("c:/"+doc.getId_doc()+ ".pdf");
                                      

          FileOutputStream fo = new FileOutputStream ("c:/firmados/"doc.getId_doc() + ".pdf");

        
            stp = PdfStamper.createSignature (reader, fo, '\0', null, true);

Watermark water = new Watermark (Image.getInstance (rutaDestino), 0, 0);
          water.scalePercent (15);
          water.setRotationDegrees ( -45);
          PdfSignatureAppearance sap = stp.getSignatureAppearance ();
         
          int n = reader.getNumberOfPages ();
          PdfContentByte cb = null;
          water.setBackgroundColor (Image.getInstance (rutaDestino).backgroundColor ());
          water.setTransparency (Image.getInstance (rutaDestino).getTransparency ());
          int valor_porcentaje = 150;
          for (int i2 = 1; i2 <= n; i2++)
          {
            com.lowagie.text.Rectangle rect2 = reader.getCropBox (i2);
            if(rect2.width() > 2000 || rect2.height() > 2000)
            {
              water.scalePercent(20);
              valor_porcentaje = 250;
            }
            else
            {
              if(sello == 1){
              water.scalePercent(15);
              valor_porcentaje = 150;
              }
              else
              water.scalePercent(15);
              valor_porcentaje = 170;             
            }
   
            if (reader.getPageRotation (i2) == 90 ||   reader.getPageRotation (i2) == 270)
            {
              if(rect2.width() < rect2.height())
              {
                water.setAbsolutePosition(rect2.height() - valor_porcentaje, rect2.width() - valor_porcentaje);
              }
                else
                {
                  water.setAbsolutePosition(rect2.width() - valor_porcentaje, rect2.height() - valor_porcentaje);       
                }
            }
            else
            {
              water.setAbsolutePosition (rect2.width () - valor_porcentaje,   rect2.height () - valor_porcentaje);
            }
           
            cb = stp.getOverContent(i2);
            cb.addImage (water);
          }
          //System.out.println ("Marcando pagina " + i2 + "de " + n);
          sap.setCrypto (key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
          sap.setReason ("SELLANDO DOCUMENTO);
          sap.setLocation ("Madrid");
          stp.close ();

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