[`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)

if (!(key in this.keyToNameMap)) {
      return false;
    }
    const valueLength = value.length;
    
    if (valueLength === 0) {
      return true;
    }
    
    for (let i = 0; i < valueLength; i++) {
      if (isNaN(value[i])) {
        warn('Invalid CFFDict value: "' + value + '" for key "' + key + '".');
        return true;
      }
    }
    const type = this.types[key];
    
    if (type === "num" || type === "sid" || type === "offset") {
      value = value[0];
    }
    this.values[key] = value;
    return true;
  }
  setByName(name, value) {