Text and Fonts - PDF Explained - page 87

Resources
As well as the PDF Standard, there are a number of other documents which provide
further detail on the topics discussed in this chapter:
• Unicode is described fully in The Unicode Standard, Version 5.0, published by The
Unicode Consortium. A more digestible introduction is O'Reilly's own Unicode
Explained by Jukka K. Korpela.
• Fonts and Encodings by Yannis Haralambous (O'Reilly) explains the various font
formats used by PDF.
• The Adobe Font and Type Technology Center is a collection of historic and current
documents for the various font formats and encoding systems, including pre-Uni-
code methods for encoding foreign languages.