Rendering pdf with pdf js

Question

Im trying to render pdf using pdfjs library but I got stuck: Im using it in an IONIC app. Below is my code :

import { PDFJS } from "pdfjs-dist";

renderPDF(url, canvasContainer) {


var options = options || { scale: 1 };

function renderPage(page) {
  var viewport = page.getViewport(options.scale);
  var canvas = document.createElement('canvas');
  var ctx = canvas.getContext('2d');
  var renderContext = {
    canvasContext: ctx,
    viewport: viewport
  };

  canvas.height = viewport.height;
  canvas.width = viewport.width;
  canvasContainer.appendChild(canvas);

  page.render(renderContext);
}

function renderPages(pdfDoc) {
  for(var num = 1; num <= pdfDoc.numPages; num++)
    pdfDoc.getPage(num).then(renderPage);
}
console.log(PDFJS)
PDFJS.disableWorker = true;
PDFJS.getDocument(url).then(renderPages);

}

I am calling it in NgOnInit, the problem Im having is with PDFJS field, as it says Cannot set property 'disableWorker' of undefined at DrawingPage.webpackJsonp.155.DrawingPage.renderPDF. Im thinking its something with import but can get it done right..

Answer 1

Doing your import like the way you're doing it means that the file you're importing must have an export called PDFJS , which it might not. To import the whole file and place whatever is exported into a variable, you can use this import format: import * as PDFJS from 'pdfjs-dist';