prawnpdf/prawn — pull request #684 by sandal (2014-03-04 21:56:35+00:00)
Title: Add a higher level interface for page anchors

Supports the following use case:

```ruby
Prawn::Document.generate("x.pdf") do
anchor "page1"
text "Hello first page!"

start_new_page

text "Go back to first page",
:inline_format => true
end
````