Adobe PDF Specification Reference 1.6 Easter Egg - Nov Shmoz Ka Pop

Download the PDF Reference, fifth edition of the Adobe® Portable Document Format Version 1.6 (partners.adobe.com/public/developer/en/pdf/PDFReference16.pdf), or buy the book from Addison-Wesley.
On page 32 of the PDF there is an example hexadecimal string:

<4E6F762073686D6F7A206B6120706F702E >

which decodes, following the rules stated on that page, to the great comic strip mystery "Nov Shmoz ka pop."