Setup PDF (either WickedPDF or PDFkit) output within Ruby on Rails Application

I have an existing Ruby on Rails application, that needs to have PDF printing enabled.

I am looking for someone who is experienced in rails development and using either the WickedPDF or PDFkit gems.

The project will be to:

- Configure the relevant gem within our cloud development environment
- Develop the required code to be able to produce a PDF based on the existing invoice show page
- Provide a walkthrough of the code and how it has been incorporated into the solution.