Here's what I did to use wicked_pdf:
# Gemfile
gem 'wicked_pdf'
gem 'wkhtmltopdf-binary' # if you need the binary too
Then run
$ bundle install
$ (bundle exec) rails g wicked_pdf # generates the initializer
Then you can configure global settings in config/initializers/wicked_pdf.rb as stated in the wicked readme on github.
Rails 4 already knows the pdf mime type, but in older versions you'll probably need to register pdf as a mime type:
# config/initializers/mime_types.rb
Mime::Type.register "application/pdf", :pdf
In your controller
respond_to do |format|
format.html
format.pdf do
render pdf: "your-filename"
end
end
Then you put a view under app/views/<your-view>/<controller-action>.pdf.erb with the content you wan't.
To reference this by a link you can do something like:
= link_to "Get PDF", your_path(format: :pdf)
Does this solve your question?