pdfobject.js兼容火狐

<div id="pdf-container"></div>
<script src="https://mozilla.github.io/pdf.js/build/pdf.js"></script>
<script>
  pdfjsLib.getDocument('path/to/your/pdf-file.pdf').promise.then(function(pdfDoc_) {
    var pdfDoc = pdfDoc_.pdfDoc;
    var pageNumber = 1;
    pdfDoc.getPage(pageNumber).then(function(page) {
      var viewport = page.getViewport({ scale: 1 });
      var canvas = document.getElementById('pdf-container');
      var context = canvas.getContext('2d');
      canvas.height = viewport.height;
      canvas.width = viewport.width;
      var renderContext = {
        canvasContext: context,
        viewport: viewport
      };
      page.render(renderContext);
    });
  });
</script>