def raw_text_convertion(self, page1, page2, convertion_style):
if self.doc_ext == '.pdf':
system("pdftotext %s -enc UTF-8 -f %i -l %i %s.pdf %s.txt"
%(convertion_style, page1, page2, self.doc_dir, self.doc_dir))
raw_text = PlaintextCorpusReader(dirname(self.doc_dir), self.temp_text_doc).raw()
encoded_lowertext = raw_text.decode('utf-8').lower().encode('utf-8')
self.raw_text = re.sub(r'[0-9]', '', encoded_lowertext)
return self.raw_text
