recize

If you want to recize iframe, do that in file jupdf-pdf-viewer/css/jupdf.css

.jupdf-wrap {
    position: relative;
    padding-top: 30px;
    padding-bottom: 30px;
  /*   height: 0;  */
    overflow: hidden;
}

 /*
.jupdf-wrap iframe {
   position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;   
}

*/