OfficeTest-isSetSupported.js

$("#run").click(getDocumentAsCompressed);

function getDocumentAsCompressed() {
  // var type = Office.FileType.Compressed;
  console.log("CompressedFile status: " + Office.context.requirements.isSetSupported("CompressedFile"));
  console.log("PdfFile status: " + Office.context.requirements.isSetSupported("PdfFile"));
  console.log("TextFile status: " + Office.context.requirements.isSetSupported("TextFile"));

  var type = Office.FileType.Pdf;

  Office.context.document.getFileAsync(type, { sliceSize: 65536 /*64 KB*/ }, function (result) {
    console.log("getFileAsync status: " + result.status + " type: " + type);

    if (result.status == Office.AsyncResultStatus.Succeeded) {
      // If the getFileAsync call succeeded, then
      // result.value will return a valid File Object.
      var myFile = result.value;
      var sliceCount = myFile.sliceCount;
      var slicesReceived = 0,
        gotAllSlices = true,
        docdataSlices = [];
      console.log("File size:" + myFile.size + " #Slices: " + sliceCount);

      // Get the file slices.
      getSliceAsync(myFile, 0, sliceCount, gotAllSlices, docdataSlices, slicesReceived);
    } else {
      console.log("Error: " + result.error.message);
    }
  });
}

function getSliceAsync(file, nextSlice, sliceCount, gotAllSlices, docdataSlices, slicesReceived) {
  file.getSliceAsync(nextSlice, function (sliceResult) {
    if (sliceResult.status == "succeeded") {
      if (!gotAllSlices) {
        // Failed to get all slices, no need to continue.
        return;
      }

      // Got one slice, store it in a temporary array.
      // (Or you can do something else, such as
      // send it to a third-party server.)
      docdataSlices[sliceResult.value.index] = sliceResult.value.data;
      if (++slicesReceived == sliceCount) {
        // All slices have been received.
        file.closeAsync();
        onGotAllSlices(docdataSlices);
      } else {
        getSliceAsync(file, ++nextSlice, sliceCount, gotAllSlices, docdataSlices, slicesReceived);
      }
    } else {
      gotAllSlices = false;
      file.closeAsync();
      console.log("getSliceAsync Error: " + sliceResult.error.message);
    }
  });
}

function onGotAllSlices(docdataSlices) {
  var docdata = [];
  for (var i = 0; i < docdataSlices.length; i++) {
    docdata = docdata.concat(docdataSlices[i]);
  }

  var bytes = new Uint8Array(docdata.length);

  for (var i = 0; i < docdata.length; i++) {
    bytes[i] = docdata[i];
  }

  var blob = new Blob([bytes], { type: "application/pdf" });

}