gistfile1.rb

require 'tabula'

pdf_file_path = "mineriafinal.pdf"
outfilename = "mineriafinalv3.csv"

out = open(outfilename, 'w')

extractor = Tabula::Extraction::ObjectExtractor.new(pdf_file_path, :all)

top, left, bottom, right = [104.46,13,580.54,820.82]
area = Tabula::ZoneEntity.new(top, left, right - left, bottom - top)

extractor.extract.each do |pdf_page|
  STDERR.puts "Extracting page: #{pdf_page.number_one_indexed}"
  h = pdf_page.get_area(area).spreadsheets
  h.each do |spreadsheet|
    out <<  spreadsheet.to_csv.gsub(/\r/, '') # eliminar carriage returns que aparecen en el PDF
  end
end
out.close