{"id":972892,"date":"2024-12-27T05:52:25","date_gmt":"2024-12-26T21:52:25","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/972892.html"},"modified":"2024-12-27T05:52:28","modified_gmt":"2024-12-26T21:52:28","slug":"python%e5%a6%82%e4%bd%95%e8%a7%a3%e6%9e%90pdf","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/972892.html","title":{"rendered":"python\u5982\u4f55\u89e3\u6790pdf"},"content":{"rendered":"

\"python\u5982\u4f55\u89e3\u6790pdf\"<\/p>\n

\u4f7f\u7528Python\u89e3\u6790PDF\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff0c\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528PyPDF2\u3001pdfminer\u548cpdfplumber\u5e93\u3002\u8fd9\u4e9b\u5e93\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u529f\u80fd\u548c\u7075\u6d3b\u6027\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u9700\u6c42\u3002PyPDF2\u9002\u5408\u7b80\u5355\u7684\u6587\u672c\u63d0\u53d6\uff0cpdfminer\u63d0\u4f9b\u66f4\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236\uff0cpdfplumber\u5219\u7ed3\u5408\u4e86\u6613\u7528\u6027\u548c\u529f\u80fd\u6027\u3002<\/strong><\/p>\n<\/p>\n

PyPDF2\u89e3\u6790PDF\u6587\u4ef6<\/strong><\/p>\n<\/p>\n

PyPDF2\u662f\u4e00\u4e2a\u7eafPython\u7f16\u5199\u7684\u5e93\uff0c\u4e3b\u8981\u7528\u4e8e\u4ecePDF\u4e2d\u63d0\u53d6\u6587\u672c\u548c\u4fe1\u606f\u3002\u5b83\u6613\u4e8e\u4f7f\u7528\uff0c\u5e76\u4e14\u652f\u6301\u5408\u5e76\u3001\u5206\u5272PDF\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PyPDF2\u89e3\u6790PDF\u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

import PyPDF2<\/p>\n
def extract_text_from_pdf(pdf_path):<\/p>\n
    with open(pdf_path, 'rb') as file:<\/p>\n
        reader = PyPDF2.PdfReader(file)<\/p>\n
        text = ''<\/p>\n
        for page in range(len(reader.pages)):<\/p>\n
            text += reader.pages[page].extract_text()<\/p>\n
        return text<\/p>\n
\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n
pdf_text = extract_text_from_pdf('example.pdf')<\/p>\n
print(pdf_text)<\/p>\n
<\/code><\/pre>\n<\/p>\n
pdfminer\u8fdb\u884c\u9ad8\u7ea7\u6587\u672c\u89e3\u6790<\/strong><\/p>\n<\/p>\n
pdfminer\u662f\u4e00\u4e2a\u5f3a\u5927\u7684PDF\u5904\u7406\u5e93\uff0c\u652f\u6301\u66f4\u590d\u6742\u7684\u89e3\u6790\u4efb\u52a1\uff0c\u5982\u7cbe\u786e\u63d0\u53d6\u6587\u672c\u4f4d\u7f6e\u3001\u5b57\u4f53\u4fe1\u606f\u7b49\u3002\u9002\u5408\u9700\u8981\u8fdb\u884c\u590d\u6742\u6587\u672c\u5904\u7406\u548c\u5206\u6790\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
\u5b89\u88c5pdfminer\uff1a<\/p>\n<\/p>\n
pip install pdfminer.six<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528pdfminer\u89e3\u6790PDF\u6587\u672c\uff1a<\/p>\n<\/p>\n
from pdfminer.high_level import extract_text<\/p>\n
def parse_pdf_with_pdfminer(pdf_path):<\/p>\n
    text = extract_text(pdf_path)<\/p>\n
    return text<\/p>\n
\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n
pdf_text = parse_pdf_with_pdfminer('example.pdf')<\/p>\n
print(pdf_text)<\/p>\n
<\/code><\/pre>\n<\/p>\n
pdfplumber\u7ed3\u5408\u6613\u7528\u6027\u548c\u529f\u80fd\u6027<\/strong><\/p>\n<\/p>\n
pdfplumber\u662f\u57fa\u4e8epdfminer\u7684\u4e00\u4e2a\u5e93\uff0c\u63d0\u4f9b\u4e86\u66f4\u7b80\u6d01\u7684API\uff0c\u5e76\u589e\u52a0\u4e86\u5904\u7406\u8868\u683c\u548c\u56fe\u50cf\u7684\u529f\u80fd\uff0c\u975e\u5e38\u9002\u5408\u9700\u8981\u63d0\u53d6\u7ed3\u6784\u5316\u6570\u636e\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
\u5b89\u88c5pdfplumber\uff1a<\/p>\n<\/p>\n
pip install pdfplumber<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528pdfplumber\u89e3\u6790PDF\u6587\u672c\uff1a<\/p>\n<\/p>\n
import pdfplumber<\/p>\n
def parse_pdf_with_pdfplumber(pdf_path):<\/p>\n
    with pdfplumber.open(pdf_path) as pdf:<\/p>\n
        text = ''<\/p>\n
        for page in pdf.pages:<\/p>\n
            text += page.extract_text()<\/p>\n
        return text<\/p>\n
\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n
pdf_text = parse_pdf_with_pdfplumber('example.pdf')<\/p>\n
print(pdf_text)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e00\u3001PYPDF2\u5e93\u7684\u4f7f\u7528<\/p>\n<\/p>\n
PyPDF2\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684PDF\u5904\u7406\u5e93\uff0c\u9002\u5408\u521d\u5b66\u8005\u4f7f\u7528\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u63d0\u53d6\u6587\u672c\u3001\u5408\u5e76\u548c\u5206\u5272PDF\u6587\u4ef6\u3002<\/p>\n<\/p>\n
    \n
  1. \u5b89\u88c5\u548c\u57fa\u672c\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
    \u9996\u5148\u9700\u8981\u5b89\u88c5PyPDF2\u5e93\uff0c\u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n
    pip install PyPDF2<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528PyPDF2\u8bfb\u53d6PDF\u6587\u4ef6\u5e76\u63d0\u53d6\u6587\u672c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n
    import PyPDF2<\/p>\n
    def extract_text_from_pdf(pdf_path):<\/p>\n
        with open(pdf_path, 'rb') as file:<\/p>\n
            reader = PyPDF2.PdfReader(file)<\/p>\n
            text = ''<\/p>\n
            for page in range(len(reader.pages)):<\/p>\n
                text += reader.pages[page].extract_text()<\/p>\n
            return text<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u7b80\u5355\u7684PDF\u6587\u4ef6\uff0c\u4f46\u5bf9\u4e8e\u5305\u542b\u590d\u6742\u683c\u5f0f\u7684\u6587\u6863\uff0c\u53ef\u80fd\u65e0\u6cd5\u51c6\u786e\u63d0\u53d6\u6587\u672c\u3002<\/p>\n<\/p>\n
      \n
    1. \u5408\u5e76\u548c\u5206\u5272PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
      PyPDF2\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u53d6\u6587\u672c\uff0c\u8fd8\u53ef\u4ee5\u5408\u5e76\u548c\u5206\u5272PDF\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
      def merge_pdfs(pdf_list, output_path):<\/p>\n
          merger = PyPDF2.PdfWriter()<\/p>\n
          for pdf in pdf_list:<\/p>\n
              merger.append(pdf)<\/p>\n
          with open(output_path, 'wb') as output_file:<\/p>\n
              merger.write(output_file)<\/p>\n
      def split_pdf(pdf_path, page_numbers, output_path):<\/p>\n
          reader = PyPDF2.PdfReader(pdf_path)<\/p>\n
          writer = PyPDF2.PdfWriter()<\/p>\n
          for page_num in page_numbers:<\/p>\n
              writer.add_page(reader.pages[page_num])<\/p>\n
          with open(output_path, 'wb') as output_file:<\/p>\n
              writer.write(output_file)<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e8c\u3001PDFMINER\u5e93\u7684\u9ad8\u7ea7\u4f7f\u7528<\/p>\n<\/p>\n
      pdfminer.six\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684PDF\u89e3\u6790\u5e93\uff0c\u652f\u6301\u66f4\u590d\u6742\u7684\u6587\u672c\u63d0\u53d6\u548c\u5206\u6790\u3002\u5b83\u80fd\u591f\u5904\u7406\u6587\u672c\u7684\u5b57\u4f53\u3001\u5927\u5c0f\u3001\u4f4d\u7f6e\u7b49\u4fe1\u606f\uff0c\u975e\u5e38\u9002\u5408\u9700\u8981\u8fdb\u884c\u6587\u672c\u5206\u6790\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
        \n
      1. \u5b89\u88c5\u548c\u57fa\u672c\u6587\u672c\u63d0\u53d6<\/strong><\/li>\n<\/ol>\n
        \u9996\u5148\u5b89\u88c5pdfminer.six\u5e93\uff1a<\/p>\n<\/p>\n
        pip install pdfminer.six<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u4f7f\u7528pdfminer.six\u63d0\u53d6PDF\u6587\u672c\uff1a<\/p>\n<\/p>\n
        from pdfminer.high_level import extract_text<\/p>\n
        def parse_pdf_with_pdfminer(pdf_path):<\/p>\n
            text = extract_text(pdf_path)<\/p>\n
            return text<\/p>\n
        <\/code><\/pre>\n<\/p>\n
          \n
        1. \u5904\u7406\u590d\u6742\u7684PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
          pdfminer.six\u53ef\u4ee5\u63d0\u53d6\u6587\u672c\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5982\u5b57\u4f53\u3001\u5927\u5c0f\u3001\u4f4d\u7f6e\u7b49\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u8fdb\u884c\u590d\u6742\u6587\u672c\u5206\u6790\u7684\u573a\u666f\u975e\u5e38\u6709\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u63d0\u53d6\u8be6\u7ec6\u4fe1\u606f\u7684\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n
          from pdfminer.layout import LAParams<\/p>\n
          from pdfminer.high_level import extract_text_to_fp<\/p>\n
          import io<\/p>\n
          def detAI<\/a>led_text_extraction(pdf_path):<\/p>\n
              output_string = io.StringIO()<\/p>\n
              with open(pdf_path, 'rb') as file:<\/p>\n
                  extract_text_to_fp(file, output_string, laparams=LAParams(), output_type='text')<\/p>\n
              return output_string.getvalue()<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4e09\u3001PDFPLUMBER\u5e93\u7684\u4f7f\u7528<\/p>\n<\/p>\n
          pdfplumber\u662f\u4e00\u4e2a\u57fa\u4e8epdfminer.six\u7684\u5e93\uff0c\u63d0\u4f9b\u4e86\u66f4\u7b80\u6d01\u7684API\uff0c\u5e76\u589e\u52a0\u4e86\u5904\u7406\u8868\u683c\u548c\u56fe\u50cf\u7684\u529f\u80fd\u3002\u9002\u5408\u9700\u8981\u63d0\u53d6\u7ed3\u6784\u5316\u6570\u636e\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
            \n
          1. \u5b89\u88c5\u548c\u57fa\u672c\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n
            \u9996\u5148\u5b89\u88c5pdfplumber\u5e93\uff1a<\/p>\n<\/p>\n
            pip install pdfplumber<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            \u4f7f\u7528pdfplumber\u63d0\u53d6PDF\u6587\u672c\uff1a<\/p>\n<\/p>\n
            import pdfplumber<\/p>\n
            def parse_pdf_with_pdfplumber(pdf_path):<\/p>\n
                with pdfplumber.open(pdf_path) as pdf:<\/p>\n
                    text = ''<\/p>\n
                    for page in pdf.pages:<\/p>\n
                        text += page.extract_text()<\/p>\n
                    return text<\/p>\n
            <\/code><\/pre>\n<\/p>\n
              \n
            1. \u63d0\u53d6\u8868\u683c\u548c\u56fe\u50cf<\/strong><\/li>\n<\/ol>\n
              pdfplumber\u8fd8\u53ef\u4ee5\u7528\u4e8e\u63d0\u53d6PDF\u4e2d\u7684\u8868\u683c\u548c\u56fe\u50cf\uff1a<\/p>\n<\/p>\n
              def extract_tables(pdf_path):<\/p>\n
                  tables = []<\/p>\n
                  with pdfplumber.open(pdf_path) as pdf:<\/p>\n
                      for page in pdf.pages:<\/p>\n
                          tables.extend(page.extract_tables())<\/p>\n
                  return tables<\/p>\n
              def extract_images(pdf_path):<\/p>\n
                  images = []<\/p>\n
                  with pdfplumber.open(pdf_path) as pdf:<\/p>\n
                      for page in pdf.pages:<\/p>\n
                          images.extend(page.images)<\/p>\n
                  return images<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u56db\u3001\u9009\u62e9\u5408\u9002\u7684\u5e93\u8fdb\u884cPDF\u89e3\u6790<\/p>\n<\/p>\n
              \u6839\u636e\u4e0d\u540c\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5e93\u8fdb\u884cPDF\u89e3\u6790\u975e\u5e38\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9009\u62e9\u5efa\u8bae\uff1a<\/p>\n<\/p>\n
                \n
              1. \u7b80\u5355\u6587\u672c\u63d0\u53d6<\/strong><\/li>\n<\/ol>\n
                \u5982\u679c\u53ea\u662f\u9700\u8981\u7b80\u5355\u5730\u4ecePDF\u4e2d\u63d0\u53d6\u6587\u672c\uff0c\u4e14\u6587\u6863\u683c\u5f0f\u4e0d\u590d\u6742\uff0c\u53ef\u4ee5\u4f7f\u7528PyPDF2\u3002\u5b83\u6613\u4e8e\u4f7f\u7528\uff0c\u9002\u5408\u521d\u5b66\u8005\u3002<\/p>\n<\/p>\n
                  \n
                1. \u590d\u6742\u6587\u672c\u5206\u6790<\/strong><\/li>\n<\/ol>\n
                  \u5982\u679c\u9700\u8981\u8fdb\u884c\u66f4\u590d\u6742\u7684\u6587\u672c\u5206\u6790\uff0c\u63d0\u53d6\u6587\u672c\u7684\u8be6\u7ec6\u4fe1\u606f\uff0cpdfminer.six\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002\u5b83\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u9002\u5408\u9700\u8981\u7ec6\u7c92\u5ea6\u63a7\u5236\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
                    \n
                  1. \u63d0\u53d6\u7ed3\u6784\u5316\u6570\u636e<\/strong><\/li>\n<\/ol>\n
                    \u5982\u679c\u9700\u8981\u63d0\u53d6PDF\u4e2d\u7684\u8868\u683c\u3001\u56fe\u50cf\u7b49\u7ed3\u6784\u5316\u6570\u636e\uff0cpdfplumber\u662f\u4e00\u4e2a\u7406\u60f3\u7684\u9009\u62e9\u3002\u5b83\u7ed3\u5408\u4e86\u6613\u7528\u6027\u548c\u529f\u80fd\u6027\uff0c\u9002\u5408\u5904\u7406\u590d\u6742\u7684PDF\u6587\u6863\u3002<\/p>\n<\/p>\n
                    \u4e94\u3001\u5904\u7406PDF\u89e3\u6790\u4e2d\u7684\u5e38\u89c1\u95ee\u9898<\/p>\n<\/p>\n
                    \u5728\u89e3\u6790PDF\u6587\u4ef6\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u5e38\u89c1\u95ee\u9898\uff0c\u5982\u6587\u672c\u4e71\u7801\u3001\u8868\u683c\u65e0\u6cd5\u6b63\u786e\u63d0\u53d6\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<\/p>\n
                      \n
                    1. \u6587\u672c\u4e71\u7801<\/strong><\/li>\n<\/ol>\n
                      \u51fa\u73b0\u6587\u672c\u4e71\u7801\u7684\u95ee\u9898\uff0c\u53ef\u80fd\u662f\u7531\u4e8ePDF\u6587\u4ef6\u4e2d\u7684\u5b57\u4f53\u7f16\u7801\u95ee\u9898\u3002\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528pdfminer.six\u6216pdfplumber\u6765\u89e3\u6790\uff0c\u8fd9\u4e9b\u5e93\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u7f16\u7801\u5904\u7406\u80fd\u529b\u3002<\/p>\n<\/p>\n
                        \n
                      1. \u8868\u683c\u65e0\u6cd5\u6b63\u786e\u63d0\u53d6<\/strong><\/li>\n<\/ol>\n
                        \u5bf9\u4e8e\u590d\u6742\u7684\u8868\u683c\uff0c\u53ef\u80fd\u9700\u8981\u624b\u52a8\u8c03\u6574pdfplumber\u7684\u53c2\u6570\uff0c\u5982\u8868\u683c\u68c0\u6d4b\u65b9\u6cd5\u7b49\u3002\u53ef\u4ee5\u53c2\u8003pdfplumber\u7684\u6587\u6863\uff0c\u4e86\u89e3\u5982\u4f55\u66f4\u597d\u5730\u63d0\u53d6\u8868\u683c\u3002<\/p>\n<\/p>\n
                          \n
                        1. \u56fe\u7247\u63d0\u53d6<\/strong><\/li>\n<\/ol>\n
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                          \u516d\u3001\u603b\u7ed3\u4e0e\u5c55\u671b<\/p>\n<\/p>\n
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