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import collections
def get_main_text_font(pdf_docs):
font_names = collections.Counter()
for page in pdf_docs:
blocks = page.get_text('dict')['blocks']
if blocks is not None:
for block in blocks:
lines = block.get('lines')
if lines is not None:
for line in lines:
span_font = [(span['font'], len(span['text'])) for span in line['spans'] if
'font' in span and len(span['text']) > 0]
if span_font:
# main_text_font应该用基于字数最多的字体而不是span级别的统计
# font_names.append(font_name for font_name in span_font)
# block_fonts.append(font_name for font_name in span_font)
for font, count in span_font:
font_names[font] += count
main_text_font = font_names.most_common(1)[0][0]
return main_text_font
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