[`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 fontDictTrackers = [];
    let fdArrayIndex = new CFFIndex();
    for (let i = 0, ii = dicts.length; i < ii; ++i) {
      const fontDict = dicts[i];
      if (removeCidKeys) {
        fontDict.removeByName("CIDFontVersion");
        fontDict.removeByName("CIDFontRevision");
        fontDict.removeByName("CIDFontType");
        fontDict.removeByName("CIDCount");
        fontDict.removeByName("UIDBase");
      }
      const fontDictTracker = new CFFOffsetTracker();
      const fontDictData = this.compileDict(fontDict, fontDictTracker);
      fontDictTrackers.push(fontDictTracker);
      fdArrayIndex.add(fontDictData);
      fontDictTracker.offset(length);
    }
    fdArrayIndex = this.compileIndex(fdArrayIndex, fontDictTrackers);
    return {
      trackers: fontDictTrackers,
      output: fdArrayIndex,
    };
  }
  compilePrivateDicts(dicts, trackers, output) {