Prawnto was created by thorny_sun of cracklabs.com standing on the shoulders of many:

The original ideas and code for creating pdf templates seems to have started with Austin Ziegler (original author of the pdf-writer gem) with this wiki post here.

Tom Willett & Josh Charles then rolled up all those ideas and code into the original railspdf plugin.

pelargir then updated the original railspdf to work with the latest rails 2.1, and created this railspdf plugin. I used this plugin as a starting point for my work. More specfically this commit. Thank you pelargir!

I've also used the xml builder template code to aid my understanding of the latest rails 2.1 templating goodness. Thanks to those authors for the example as well as the framework!

Thank you for answering all my dumb ruby questions!

Thank you josh for helping me understand rail's compiled templates!

Thank you sandal for giving us all the prawn library, and for all your help! Prawnto is but a prawn parasite (hopefully symbiotic)

Thank you yob for wasting time helping me diagnose random prawn/ruby issues, and of course for your work on prawn!