{"id":983186,"date":"2024-12-27T07:17:15","date_gmt":"2024-12-26T23:17:15","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/983186.html"},"modified":"2024-12-27T07:17:17","modified_gmt":"2024-12-26T23:17:17","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8python%e7%8e%a9%e8%bd%acpdf","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/983186.html","title":{"rendered":"\u5982\u4f55\u4f7f\u7528python\u73a9\u8f6cpdf"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528python\u73a9\u8f6cpdf\"<\/p>\n

\u4f7f\u7528Python\u73a9\u8f6cPDF\u7684\u6838\u5fc3\u65b9\u6cd5\u5305\u62ec\uff1a\u8bfb\u53d6PDF\u5185\u5bb9\u3001\u521b\u5efa\u548c\u4fee\u6539PDF\u6587\u4ef6\u3001\u63d0\u53d6\u6587\u672c\u4fe1\u606f\u3001\u5408\u5e76\u548c\u62c6\u5206PDF\u6587\u4ef6\u3002\u5229\u7528Python\u7684\u5f3a\u5927\u5e93\u5982PyPDF2\u3001PDFMiner\u548cReportLab\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5904\u7406\u548c\u64cd\u4f5cPDF\u6587\u4ef6\u3002\u4ee5\u4e0b\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e9b\u529f\u80fd\u3002<\/strong><\/p>\n<\/p>\n

\u4e00\u3001\u8bfb\u53d6PDF\u5185\u5bb9<\/p>\n<\/p>\n

\u8bfb\u53d6PDF\u6587\u4ef6\u7684\u5185\u5bb9\u662f\u4f7f\u7528Python\u64cd\u4f5cPDF\u6587\u4ef6\u7684\u57fa\u7840\u3002Python\u63d0\u4f9b\u4e86\u591a\u4e2a\u5e93\u6765\u5b9e\u73b0\u6b64\u529f\u80fd\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662fPyPDF2\u548cPDFMiner\u3002<\/p>\n<\/p>\n

    \n
  1. \u4f7f\u7528PyPDF2\u8bfb\u53d6PDF<\/strong><\/li>\n<\/ol>\n

    PyPDF2\u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684Python\u5e93\uff0c\u53ef\u4ee5\u7528\u6765\u8bfb\u53d6PDF\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5PyPDF2\u5e93\uff1a<\/p>\n<\/p>\n

    pip install PyPDF2<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4f7f\u7528PyPDF2\u8bfb\u53d6PDF\u6587\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
    import PyPDF2<\/p>\n
    def read_pdf(file_path):<\/p>\n
        with open(file_path, 'rb') as file:<\/p>\n
            reader = PyPDF2.PdfReader(file)<\/p>\n
            text = ''<\/p>\n
            for page in reader.pages:<\/p>\n
                text += page.extract_text()<\/p>\n
        return text<\/p>\n
    pdf_text = read_pdf('example.pdf')<\/p>\n
    print(pdf_text)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6253\u5f00\u4e00\u4e2aPDF\u6587\u4ef6\uff0c\u7136\u540e\u901a\u8fc7\u904d\u5386\u6bcf\u4e00\u9875\u6765\u63d0\u53d6\u6587\u672c\u5185\u5bb9\u3002PyPDF2\u867d\u7136\u7b80\u5355\u6613\u7528\uff0c\u4f46\u5728\u5904\u7406\u590d\u6742\u7684PDF\u683c\u5f0f\u65f6\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u9650\u5236\u3002<\/p>\n<\/p>\n
      \n
    1. \u4f7f\u7528PDFMiner\u63d0\u53d6\u6587\u672c<\/strong><\/li>\n<\/ol>\n
      PDFMiner\u662f\u53e6\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u7279\u522b\u9002\u5408\u63d0\u53d6PDF\u4e2d\u7684\u6587\u672c\u4fe1\u606f\u3002\u5148\u5b89\u88c5PDFMiner\u5e93\uff1a<\/p>\n<\/p>\n
      pip install pdfminer.six<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4f7f\u7528PDFMiner\u63d0\u53d6\u6587\u672c\u7684\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
      from pdfminer.high_level import extract_text<\/p>\n
      def extract_pdf_text(file_path):<\/p>\n
          return extract_text(file_path)<\/p>\n
      pdf_text = extract_pdf_text('example.pdf')<\/p>\n
      print(pdf_text)<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      PDFMiner\u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u80fd\u591f\u66f4\u597d\u5730\u5904\u7406\u590d\u6742\u7684PDF\u6587\u6863\uff0c\u652f\u6301\u591a\u79cd\u7f16\u7801\u683c\u5f0f\uff0c\u5e76\u53ef\u4ee5\u8bc6\u522b\u5b57\u4f53\u548c\u5e03\u5c40\u3002<\/p>\n<\/p>\n
      \u4e8c\u3001\u521b\u5efa\u548c\u4fee\u6539PDF\u6587\u4ef6<\/p>\n<\/p>\n
      Python\u4e0d\u4ec5\u53ef\u4ee5\u8bfb\u53d6PDF\u6587\u4ef6\uff0c\u8fd8\u53ef\u4ee5\u521b\u5efa\u548c\u4fee\u6539PDF\u3002ReportLab\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684Python\u5e93\uff0c\u4e13\u95e8\u7528\u4e8e\u751f\u6210PDF\u6587\u6863\u3002<\/p>\n<\/p>\n
        \n
      1. \u4f7f\u7528ReportLab\u521b\u5efaPDF<\/strong><\/li>\n<\/ol>\n
        \u9996\u5148\uff0c\u5b89\u88c5ReportLab\uff1a<\/p>\n<\/p>\n
        pip install reportlab<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u4f7f\u7528ReportLab\u521b\u5efaPDF\u6587\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
        from reportlab.lib.pagesizes import letter<\/p>\n
        from reportlab.pdfgen import canvas<\/p>\n
        def create_pdf(file_path):<\/p>\n
            c = canvas.Canvas(file_path, pagesize=letter)<\/p>\n
            c.drawString(100, 750, "Hello, this is a PDF document created using ReportLab.")<\/p>\n
            c.save()<\/p>\n
        create_pdf('created_document.pdf')<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684PDF\u6587\u4ef6\uff0c\u5e76\u5728\u5176\u4e0a\u6dfb\u52a0\u4e86\u4e00\u6bb5\u6587\u672c\u3002ReportLab\u8fd8\u652f\u6301\u66f4\u590d\u6742\u7684\u64cd\u4f5c\uff0c\u5982\u6dfb\u52a0\u56fe\u50cf\u3001\u7ed8\u5236\u5f62\u72b6\u3001\u8bbe\u7f6e\u5b57\u4f53\u548c\u6837\u5f0f\u7b49\u3002<\/p>\n<\/p>\n
          \n
        1. \u4fee\u6539PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
          \u867d\u7136PyPDF2\u4e0d\u652f\u6301\u76f4\u63a5\u4fee\u6539PDF\u6587\u4ef6\u7684\u5185\u5bb9\uff08\u5982\u7f16\u8f91\u6587\u672c\uff09\uff0c\u4f46\u5b83\u53ef\u4ee5\u5408\u5e76\u3001\u62c6\u5206PDF\u6587\u4ef6\u4ee5\u53ca\u6dfb\u52a0\u6c34\u5370\u3002<\/p>\n<\/p>\n
          import PyPDF2<\/p>\n
          def merge_pdfs(paths, output):<\/p>\n
              pdf_writer = PyPDF2.PdfWriter()<\/p>\n
              for path in paths:<\/p>\n
                  pdf_reader = PyPDF2.PdfReader(path)<\/p>\n
                  for page in pdf_reader.pages:<\/p>\n
                      pdf_writer.add_page(page)<\/p>\n
              with open(output, 'wb') as out:<\/p>\n
                  pdf_writer.write(out)<\/p>\n
          merge_pdfs(['document1.pdf', 'document2.pdf'], 'merged.pdf')<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u8fd9\u6bb5\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u5408\u5e76\u591a\u4e2aPDF\u6587\u4ef6\u3002\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aPdfWriter\u5bf9\u8c61\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u591a\u4e2aPDF\u6587\u4ef6\u7684\u9875\u9762\u5408\u5e76\u5230\u4e00\u4e2a\u65b0\u7684PDF\u6587\u4ef6\u4e2d\u3002<\/p>\n<\/p>\n
          \u4e09\u3001\u63d0\u53d6\u6587\u672c\u4fe1\u606f<\/p>\n<\/p>\n
          \u63d0\u53d6PDF\u6587\u4ef6\u4e2d\u7684\u6587\u672c\u4fe1\u606f\u662f\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u7684\u5173\u952e\u529f\u80fd\uff0c\u5982\u6570\u636e\u5206\u6790\u3001\u4fe1\u606f\u68c0\u7d22\u7b49\u3002<\/p>\n<\/p>\n
            \n
          1. \u63d0\u53d6\u7279\u5b9a\u9875\u9762\u7684\u6587\u672c<\/strong><\/li>\n<\/ol>\n
            \u901a\u8fc7PyPDF2\u6216PDFMiner\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u53d6\u7279\u5b9a\u9875\u9762\u7684\u6587\u672c\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PyPDF2\u5b9e\u73b0\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
            import PyPDF2<\/p>\n
            def extract_page_text(file_path, page_number):<\/p>\n
                with open(file_path, 'rb') as file:<\/p>\n
                    reader = PyPDF2.PdfReader(file)<\/p>\n
                    page = reader.pages[page_number]<\/p>\n
                    return page.extract_text()<\/p>\n
            page_text = extract_page_text('example.pdf', 0)<\/p>\n
            print(page_text)<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            \u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u63d0\u53d6\u6307\u5b9a\u9875\u9762\u7684\u6587\u672c\u3002\u901a\u8fc7\u63d0\u4f9b\u9875\u9762\u7f16\u53f7\uff0c\u6211\u4eec\u53ef\u4ee5\u4ecePDF\u6587\u4ef6\u4e2d\u63d0\u53d6\u51fa\u7279\u5b9a\u9875\u9762\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
              \n
            1. \u63d0\u53d6\u7279\u5b9a\u683c\u5f0f\u7684\u6570\u636e<\/strong><\/li>\n<\/ol>\n
              \u5728\u67d0\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u4ecePDF\u6587\u4ef6\u4e2d\u63d0\u53d6\u7279\u5b9a\u683c\u5f0f\u7684\u6570\u636e\uff0c\u5982\u8868\u683c\u3001\u56fe\u7247\u7b49\u3002\u8fd9\u9700\u8981\u4f7f\u7528\u66f4\u590d\u6742\u7684PDF\u89e3\u6790\u65b9\u6cd5\u3002PDFMiner\u63d0\u4f9b\u4e86\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u89e3\u6790\u590d\u6742\u7684PDF\u7ed3\u6784\u3002<\/p>\n<\/p>\n
              \u56db\u3001\u5408\u5e76\u548c\u62c6\u5206PDF\u6587\u4ef6<\/p>\n<\/p>\n
              \u5408\u5e76\u548c\u62c6\u5206PDF\u6587\u4ef6\u662f\u6587\u6863\u7ba1\u7406\u4e2d\u7684\u5e38\u89c1\u64cd\u4f5c\uff0cPython\u7684PyPDF2\u5e93\u53ef\u4ee5\u9ad8\u6548\u5730\u5b9e\u73b0\u8fd9\u4e9b\u529f\u80fd\u3002<\/p>\n<\/p>\n
                \n
              1. \u5408\u5e76PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
                \u5408\u5e76PDF\u6587\u4ef6\u7684\u8fc7\u7a0b\u5df2\u7ecf\u5728\u524d\u6587\u4e2d\u4ecb\u7ecd\uff0c\u901a\u8fc7\u521b\u5efaPdfWriter\u5bf9\u8c61\u5e76\u5c06\u591a\u4e2aPDF\u6587\u4ef6\u7684\u9875\u9762\u5408\u5e76\u5230\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u4e2d\u53ef\u4ee5\u5b9e\u73b0\u6b64\u529f\u80fd\u3002<\/p>\n<\/p>\n
                  \n
                1. \u62c6\u5206PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
                  \u62c6\u5206PDF\u6587\u4ef6\u662f\u6307\u5c06\u4e00\u4e2aPDF\u6587\u4ef6\u5206\u5272\u6210\u591a\u4e2a\u72ec\u7acb\u7684\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PyPDF2\u5b9e\u73b0\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
                  import PyPDF2<\/p>\n
                  def split_pdf(file_path, start_page, end_page, output):<\/p>\n
                      with open(file_path, 'rb') as file:<\/p>\n
                          reader = PyPDF2.PdfReader(file)<\/p>\n
                          pdf_writer = PyPDF2.PdfWriter()<\/p>\n
                          for page_number in range(start_page, end_page + 1):<\/p>\n
                              pdf_writer.add_page(reader.pages[page_number])<\/p>\n
                          with open(output, 'wb') as out:<\/p>\n
                              pdf_writer.write(out)<\/p>\n
                  split_pdf('example.pdf', 0, 2, 'split_document.pdf')<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4ece\u4e00\u4e2aPDF\u6587\u4ef6\u4e2d\u63d0\u53d6\u51fa\u6307\u5b9a\u8303\u56f4\u7684\u9875\u9762\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u4e3a\u4e00\u4e2a\u65b0\u7684PDF\u6587\u4ef6\u3002<\/p>\n<\/p>\n
                  \u4e94\u3001PDF\u6587\u4ef6\u7684\u5b89\u5168\u6027\u4e0e\u52a0\u5bc6<\/p>\n<\/p>\n
                  \u5728\u5904\u7406PDF\u6587\u4ef6\u65f6\uff0c\u5b89\u5168\u6027\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8003\u8651\u56e0\u7d20\u3002Python\u7684PyPDF2\u5e93\u63d0\u4f9b\u4e86\u4e00\u4e9b\u57fa\u672c\u7684PDF\u52a0\u5bc6\u548c\u89e3\u5bc6\u529f\u80fd\u3002<\/p>\n<\/p>\n
                    \n
                  1. \u52a0\u5bc6PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
                    \u52a0\u5bc6PDF\u6587\u4ef6\u53ef\u4ee5\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u4ee5\u4e0b\u662f\u5b9e\u73b0\u6b64\u529f\u80fd\u7684\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
                    import PyPDF2<\/p>\n
                    def encrypt_pdf(input_file, output_file, password):<\/p>\n
                        pdf_reader = PyPDF2.PdfReader(input_file)<\/p>\n
                        pdf_writer = PyPDF2.PdfWriter()<\/p>\n
                        for page in pdf_reader.pages:<\/p>\n
                            pdf_writer.add_page(page)<\/p>\n
                        pdf_writer.encrypt(password)<\/p>\n
                        with open(output_file, 'wb') as out:<\/p>\n
                            pdf_writer.write(out)<\/p>\n
                    encrypt_pdf('example.pdf', 'encrypted_document.pdf', 'password123')<\/p>\n
                    <\/code><\/pre>\n<\/p>\n
                    \u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528PyPDF2\u5bf9PDF\u6587\u4ef6\u8fdb\u884c\u52a0\u5bc6\uff0c\u8bbe\u7f6e\u4e00\u4e2a\u5bc6\u7801\u4ee5\u4fdd\u62a4\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<\/p>\n
                      \n
                    1. \u89e3\u5bc6PDF\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
                      \u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u89e3\u5bc6PDF\u6587\u4ef6\u4ee5\u8bbf\u95ee\u5176\u5185\u5bb9\u3002\u4ee5\u4e0b\u662f\u5b9e\u73b0\u89e3\u5bc6\u7684\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
                      import PyPDF2<\/p>\n
                      def decrypt_pdf(input_file, password):<\/p>\n
                          with open(input_file, 'rb') as file:<\/p>\n
                              pdf_reader = PyPDF2.PdfReader(file)<\/p>\n
                              if pdf_reader.is_encrypted:<\/p>\n
                                  pdf_reader.decrypt(password)<\/p>\n
                                  text = ''<\/p>\n
                                  for page in pdf_reader.pages:<\/p>\n
                                      text += page.extract_text()<\/p>\n
                                  return text<\/p>\n
                              else:<\/p>\n
                                  rAI<\/a>se ValueError("File is not encrypted")<\/p>\n
                      pdf_text = decrypt_pdf('encrypted_document.pdf', 'password123')<\/p>\n
                      print(pdf_text)<\/p>\n
                      <\/code><\/pre>\n<\/p>\n
                      \u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528PyPDF2\u89e3\u5bc6\u4e00\u4e2a\u52a0\u5bc6\u7684PDF\u6587\u4ef6\u3002\u901a\u8fc7\u63d0\u4f9b\u6b63\u786e\u7684\u5bc6\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbf\u95ee\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
                      \u603b\u7ed3\uff1a<\/p>\n<\/p>\n
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