Ruby Gem to check which pages of a pdf contain color and output those.

Add this line to your application's Gemfile:

gem 'pdf_colored_pages'

And then execute:

$ bundle

Or install it yourself as:

$ gem install pdf_colored_pages

As Array:

PdfColoredPages.as_array(/path/to/pdf.pdf)
# returns [1,3,4]

As Range String:

PdfColoredPages.as_range_string(/path/to/pdf.pdf)
# returns: 1,3-4

Shell:

$ pdf_colored_pages ./path/to/pdf.pdf
# outputs 1,3-4

Just Check:

PdfColoredPages.colored_pages?(/path/to/pdf.pdf)
# returns: true or false

Test:

$ rake test

1. Fork it ( https://github.com/RedRoosterMobile/pdf-colored-pages/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request