Bug 137444 Can not preview the old file with PDF
Details: Can not preview the old file with PDF Please run the attached file with PDF, it can not preview. But HTML and web view is no problem.
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFEmitter.java
{
			Object value = services.getOption( RenderOptionBase.OUTPUT_STREAM );
			if( value != null && value instanceof OutputStream )
			{
				output = ( OutputStream ) value;
			}
			
			
			
			else
			{
				try
				{
					file = new File( REPORT_FILE );
					output = new FileOutputStream( file );
				}
				catch ( FileNotFoundException e )
				{
					logger.log(Level.SEVERE, e.getMessage( ), e );
				}
			}
		}
	}
	
	/**
	 * new a document and create a PdfWriter
	 */
	public void start(IReportContent rc)
	{
		this.report = rc;