yob/pdf-reader — pull request #123 by umairsiddique (2014-04-14 12:55:05+00:00)
Title: Revert to standard encoding if CMAP exists but is empty.

In some cases, a PDF may have a CMAP, but it may be empty. In those cases, it's better to revert to PDF::Reader::Encoding class to avoid returning gibberish characters.