[`http://www.ei.ruhr-uni-bochum.de/media/crypto/veroeffentlichungen/2010/08/08/baileypaaroefjc.pdf`](http://www.ei.ruhr-uni-bochum.de/media/crypto/veroeffentlichungen/2010/08/08/baileypaaroefjc.pdf) is severely mis-rendered by the version of pdf.js bundled with Firefox 38.0.5:

![screen shot of misrendered PDF using pdf.js](https://cloud.githubusercontent.com/assets/325899/8235479/3876046e-15b0-11e5-97c0-ecbb5d9f8ee8.png)

You can see that practically every word has some blanks where letters should be.

Note that Adobe Reader (11.0.09) does a _better_ job of rendering but still has many missing characters, and throws up an error message about a font that it "cannot extract", so the PDF itself may be ill-formed (in which case pdf.js should give an error message too).

![screen shot of the same PDF with Adobe Reader 11.0.09](https://cloud.githubusercontent.com/assets/325899/8235615/da33e866-15b0-11e5-96a2-8b9f15c6f74d.png)

const out = [];
    for (let i = 0, ii = data.length; i < ii; ++i) {
      out[i] = data[i];
    }
    return out;
  }
  compileIndex(index, trackers = []) {
    const objects = index.objects;
    
    const count = objects.length;
    
    
    if (count === 0) {
      return [0, 0, 0];
    }
    const data = [(count >> 8) & 0xff, count & 0xff];
    let lastOffset = 1,
      i;
    for (i = 0; i < count; ++i) {
      lastOffset += objects[i].length;
    }
    let offsetSize;
    if (lastOffset < 0x100) {
      offsetSize = 1;