PDF file not rendering properly

Link to PDF file (or attach file here): New.pdf

Configuration:

• Web browser and its version:Chrome Version 50.0.2661.94 (64-bit), also Safari Version 9.0.1 (11601.2.7.2)
• Operating system and its version: Mac OS X v10.11.1
• PDF.js version: pdfjs-1.4.20-dist, also tried pdfjs-1.5.188-dist
• Is an extension: No

Steps to reproduce the problem: Execute in dev tools console in Chrome:

PDFJS.disableWorker = true;
PDFJS.getDocument('<url to document>').then(function(pdf){
  pdf.getPage(1).then(function(page){
    viewport = page.getViewport(1);
    canvas = document.getElementById('render-doc-here');
    context = canvas.getContext('2d');
    canvas.width = viewport.width;
    renderContext = {canvasContext: context, viewport: viewport};
    page.render(renderContext);
  })
});

What is the expected behavior?

What went wrong?

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension): not hosted

[richkniles]

For future reference to others interested in using PDF.js with Ember, turning off extensions for Array appears to fix the issue of incorrect pdf rendering of some pdf files. https://guides.emberjs.com/v2.5.0/configuring-ember/disabling-prototype-extensions/

[yurydelendik]

Is there some documentation about CMaps? I don’t see anything about that in the examples.

See e.g. https://github.com/mozilla/pdf.js/blob/master/examples/components/simpleviewer.js