Spacy - pdf_reader extraction of text only from specific pages

could you please tell me what is wrong with below function. I would like to parse only first two pages of the pdf. When I call the function with argument page_numbers=[0,1] it extracts text from all pages anyway.

The function is very slow and I would like to limit number of pages parsed.

def spacy_extractor(label, pattern_name, list_name, pdf_path, pdf_name,
                    filtered_list,page_numbers):

    patterns = [{'label': label, 'pattern': pattern_name} for pattern_name in list_name]
    ruler.add_patterns(patterns)
    doc = pdf_reader(os.path.join(pdf_path, pdf_name), nlp, PdfminerParser, page_numbers)
    filtered_list = [ent.text for ent in doc.ents if ent.label_ == label]

    return filtered_list[0] if filtered_list else None

cover_page_legal_form = spacy_extractor(label='LEG', pattern_name= 'legal_form', list_name=legal_form_list,
                                         pdf_path=fs_path_pdf, pdf_name=fs_name_pdf, filtered_list='legal_forms_filtered',page_numbers=[0,1])

Thank you,