Cairo::Context - Ruby-GNOME2 Project Website
a listing of additional methods that are added to Cairo::Context by loading extra libs
Ruby/Pango - Ruby-GNOME2 Project Website
Ruby/Pango API reference
Pango Reference Manual
Pango API docs from gnome
PDF Appender? - comp.lang.ruby | Google Groups
example code snippet for rendering a pdf file to a cairo context. Allows the pdf to be edited, then output to a new file.
The Pango connection: Part 1
Intro to Pango and its underlying concepts
The Pango connection: Part 2
intro to using pango
The Pango Markup Language
good reference from the pygtk folk
Pango - Design
intro to the concepts behind pango
pygtk: The pango Class Reference
docs for pango in python, but maps pretty well to the ruby bindings
Pango:Beginners - Mono
Cairo Tutorial
the text bit has a good explaination of the various co-ordinate issues with text/glyphs