rails paperclip processors in lib requires restart for every change. Change on request?

I have paperclip processors in the lib directory. Everytime I make a change to them, I am required to restart. I've tried the following in the /config/application.rb but none work. When I didn't have paperclip processors, the 3rd one worked so that I didn't have to restart my server everytime. Now, I have to restart everytime. 0Any suggestions on how to reload processors on request?

These are the 3 I've tried:

config.autoload_paths += "#{Rails.root}/lib"

config.eager_load_paths += ["#{Rails.root}/lib"]

config.autoload_paths << Rails.root.join('lib')

Just in case, in my model I have the line:

has_attached_file :mls_pdf,  :styles => { :mls_pdf_processor => {:text_for => 'subject'} },
            :path => "#{Rails.root}/storage/:class/:attachment/:id_partition/:style/:filename",
            :url => "#{Rails.root}/storage/:class/:attachment/:id_partition/:style/:filename",
            processors: [:mls_pdf_processor]

my processors in lib/paperclip_processors/mls_pdf_processor.rb

module Paperclip
class MlsPdfProcessor < Processor

    require 'paperclip_processors/processor_helper.rb'
    # include PaperclipProcessors::ProcessorHelper

    def initialize( file, options = {}, attachment = nil )
        super
        @file = file
        @attachment     = attachment
        @mls_type       = options[:text_for]
        @current_format = File.extname(@file.path) 
        @basename       = File.basename(@file.path, '.*')
        @dst_file       = Tempfile.new([@basename, 'txt'])

        @receiver = PDF::Reader::RegisterReceiver.new
        @text = []                  # all text data from PDF    
        @type                       # type of pdf

    end

    def make
        @file
        File.open(@dst_file)
    end

end
end