// generate PDF
    pdfGen := IEVisionLib.createSearchablePDFGenerator(PAnsiChar(AnsiString(langPath)), PAnsiChar(AnsiString(langCode)) );
    pdfGen.setSegmentationMode(TIEVisionOCRPageSegmentationMode(cmbLayout.ItemIndex));
    pdfGen.beginDocument(PAnsiChar(AnsiString( outFile )), PAnsiChar(AnsiString( 'IEVision PDF Test' )));
    for i := 0 to ImageEnMView1.ImageCount - 1 do
    begin
      ProgressBar1.Position := MulDiv( i, 100, ImageEnMView1.ImageCount );
      ProgressBar1.Visible  := True;

      ImageEnMView1.SelectedImage := i;
      Application.ProcessMessages();
      ImageEnMView1.IEBitmap.ParamsEnabled := true;
      ImageEnMView1.IEBitmap.Params.Dpi := ImageEnMView1.MIO.Params[i].Dpi;
      // added to set compression and remove alpha channel from JPEG images
      if ( CompareText( ExtractFileExt( ImageEnMView1.MIO.Params[i].FileName ), '.jpg' ) = 0 ) 
      or ( CompareText( ExtractFileExt( ImageEnMView1.MIO.Params[i].FileName ), '.jpeg' ) = 0 ) then
      begin
        ImageEnMView1.IEBitmap.Params.PDF_Compression := ioPDF_JPEG;
        ImageEnMView1.IEBitmap.Params.JPEG_Quality    := 90;
        if ImageEnMView1.IEBitmap.HasAlphaChannel() then
          ImageEnMView1.IEBitmap.RemoveAlphaChannel( true );
        ImageEnMView1.Update;
      end;
      //
      pdfGen.addPage(ImageEnMView1.IEBitmap.GetIEVisionImage());
    end;
    pdfGen.endDocument();
    pdfGen := nil;