I have a rails 3.1 app that creates pdf documents using pdfkit, and everything works as specified, except for the fact that the generated pdfs don\'t have any styling. I am
I ran into this problem as well, and it appears that when the asset pipeline was added in Rails 3.1, pdfkit has a problem with the stylesheet links. See the GitHub issue about this problem.
I ended up switching to wicked_pdf and am really happy with it. They've solved this problem and it works nicely on Rails 3.2.x (haven't tried 3.1.x).