ImageEnView1.LayersAdd( ielkImage, 0, 0, ImageEnView1.ClientWidth div 2, ImageEnView1.ClientHeight );
  ImageEnView1.IO.LoadFromFile( 'D:\im.jpg' );
  TIEImageLayer( ImageEnView1.CurrentLayer ).RestoreAspectRatio();
  ImageEnView1.LayersAdd( ielkImage, ImageEnView1.ClientWidth div 2, 0, ImageEnView1.ClientWidth div 2, ImageEnView1.ClientHeight );
  ImageEnView1.IO.LoadFromFile( 'D:\im2.jpg' );
  TIEImageLayer( ImageEnView1.CurrentLayer ).RestoreAspectRatio();

procedure TForm1.ImageEnView1DrawCanvas(Sender: TObject; ACanvas: TCanvas; ARect: TRect);
var
  bmp1, bmp2: TIEBitmap;
begin
  bmp1 := TIEBitmap.Create();
  bmp2 := TIEBitmap.Create();
  bmp1.LoadFromFile( 'D:\im.jpg' );
  bmp1.RenderToCanvas( ACanvas, Rect( 0, 0, ImageEnView1.ClientWidth div 2, ImageEnView1.ClientHeight ), rfFastLinear, 0, clWhite, True );
  bmp2.LoadFromFile( 'D:\im2.jpg' );
  bmp2.RenderToCanvas( ACanvas, Rect( ImageEnView1.ClientWidth div 2, 0, ImageEnView1.ClientWidth, ImageEnView1.ClientHeight ), rfFastLinear, 0, clWhite, True );
  bmp1.Free();
  bmp2.Free();
end;