[`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 (!valid) {
          
          charStrings.set(i, new Uint8Array([14]));
        }
      }
      return { charStrings, seacs, widths };
    }
    emptyPrivateDictionary(parentDict) {
      const privateDict = this.createDict(
        CFFPrivateDict,
        [],
        parentDict.strings
      );
      parentDict.setByKey(18, [0, 0]);
      parentDict.privateDict = privateDict;
    }
    parsePrivateDict(parentDict) {
      
      if (!parentDict.hasName("Private")) {
        this.emptyPrivateDictionary(parentDict);
        return;
      }
      const privateOffset = parentDict.getByName("Private");
      
      if (!Array.isArray(privateOffset) || privateOffset.length !== 2) {
        parentDict.removeByName("Private");
        return;
      }
      const size = privateOffset[0];