PDF Generation in Rails with Prawn and Prawn-to: John McCaffrey

Advanced examples

1.
Basic Grid layout display (showing you where the grid lines are)
samples/advanced/grid.pdf
2.
Using Grid to create labels
samples/advanced/labels.pdf
3.
Using google_charts
samples/advanced/google_charts.pdf
4.
Prawn-format (allowing you to simplify your style)
samples/advanced/prawn-format.pdf
(Link: PDF Generation in Rails with Prawn and Prawn-to: John McCaffrey)