Zapf Dingbats series 100 became widely implemented on PostScript printers, and gained currency as a pi font encoding in the 1980s and early 1990s.

It incorporates several rightward-facing arrows without counterparts for the other three cardinal directions, on the assumption that it would be used in contexts allowing rotation of text characters.

[3] The ITC glyph set is included in Unicode and it is one of the "Basic 14" typefaces guaranteed to be available for PDF files.

ZapfDingbats, the PostScript version of ITC Zapf Dingbats, is distributed with Acrobat Reader 5 and 5.1.

He said he did it because the interview was "incredibly boring" and that upon searching his typeface collection for a suitable font and ending at Zapf Dingbats, decided to use it with hopes of making the article interesting again.