{"id":1168339,"date":"2025-01-15T15:56:52","date_gmt":"2025-01-15T07:56:52","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1168339.html"},"modified":"2025-01-15T15:56:55","modified_gmt":"2025-01-15T07:56:55","slug":"python%e7%a8%8b%e5%ba%8f%e5%a6%82%e4%bd%95%e8%bd%ac%e6%8d%a2pdf%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1168339.html","title":{"rendered":"python\u7a0b\u5e8f\u5982\u4f55\u8f6c\u6362pdf\u6587\u4ef6"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26065614\/b69d0337-bb4c-4931-b26d-9584f0813ce7.webp\" alt=\"python\u7a0b\u5e8f\u5982\u4f55\u8f6c\u6362pdf\u6587\u4ef6\" \/><\/p>\n<p><p> <strong>Python\u7a0b\u5e8f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5c06PDF\u6587\u4ef6\u8fdb\u884c\u8f6c\u6362<\/strong>\uff0c\u5305\u62ec\u4f7f\u7528PyPDF2\u3001reportlab\u3001pdfminer\u3001pytesseract\u7b49\u5e93\u8fdb\u884cPDF\u89e3\u6790\u3001\u521b\u5efa\u548c\u56fe\u50cf\u6587\u5b57\u8bc6\u522b\u3002<strong>PyPDF2\u7528\u4e8ePDF\u6587\u4ef6\u7684\u5408\u5e76\u548c\u62c6\u5206\u3001reportlab\u7528\u4e8e\u521b\u5efaPDF\u6587\u4ef6\u3001pdfminer\u7528\u4e8e\u63d0\u53d6PDF\u5185\u5bb9\u3001pytesseract\u7528\u4e8ePDF\u4e2d\u7684\u56fe\u50cf\u6587\u5b57\u8bc6\u522b<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u5e93\u8fdb\u884cPDF\u6587\u4ef6\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528PyPDF2\u5408\u5e76\u548c\u62c6\u5206PDF\u6587\u4ef6<\/h3>\n<\/p>\n<p><p>PyPDF2\u662f\u4e00\u4e2a\u7eafPython\u7f16\u5199\u7684PDF\u5de5\u5177\u5305\uff0c\u53ef\u4ee5\u7528\u6765\u62c6\u5206\u548c\u5408\u5e76PDF\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><h4>1. \u5b89\u88c5PyPDF2<\/h4>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u4f7f\u7528PyPDF2\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5b89\u88c5\u8fd9\u4e2a\u5e93\u3002\u53ef\u4ee5\u901a\u8fc7pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install PyPDF2<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2. \u5408\u5e76PDF\u6587\u4ef6<\/h4>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u7528\u4e8e\u5c06\u591a\u4e2aPDF\u6587\u4ef6\u5408\u5e76\u6210\u4e00\u4e2aPDF\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import PyPDF2<\/p>\n<p>def merge_pdfs(pdf_list, output_path):<\/p>\n<p>    pdf_writer = PyPDF2.PdfFileWriter()<\/p>\n<p>    for pdf in pdf_list:<\/p>\n<p>        pdf_reader = PyPDF2.PdfFileReader(pdf)<\/p>\n<p>        for page_num in range(pdf_reader.getNumPages()):<\/p>\n<p>            page = pdf_reader.getPage(page_num)<\/p>\n<p>            pdf_writer.addPage(page)<\/p>\n<p>    with open(output_path, &#39;wb&#39;) as out:<\/p>\n<p>        pdf_writer.write(out)<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>pdf_files = [&#39;file1.pdf&#39;, &#39;file2.pdf&#39;, &#39;file3.pdf&#39;]<\/p>\n<p>merge_pdfs(pdf_files, &#39;merged.pdf&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3. \u62c6\u5206PDF\u6587\u4ef6<\/h4>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u7528\u4e8e\u5c06\u4e00\u4e2aPDF\u6587\u4ef6\u62c6\u5206\u6210\u591a\u4e2aPDF\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import PyPDF2<\/p>\n<p>def split_pdf(input_path, output_folder):<\/p>\n<p>    pdf_reader = PyPDF2.PdfFileReader(input_path)<\/p>\n<p>    for page_num in range(pdf_reader.getNumPages()):<\/p>\n<p>        pdf_writer = PyPDF2.PdfFileWriter()<\/p>\n<p>        page = pdf_reader.getPage(page_num)<\/p>\n<p>        pdf_writer.addPage(page)<\/p>\n<p>        output_path = f&#39;{output_folder}\/page_{page_num + 1}.pdf&#39;<\/p>\n<p>        with open(output_path, &#39;wb&#39;) as out:<\/p>\n<p>            pdf_writer.write(out)<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>split_pdf(&#39;input.pdf&#39;, &#39;output_folder&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528reportlab\u521b\u5efaPDF\u6587\u4ef6<\/h3>\n<\/p>\n<p><p>reportlab\u662f\u4e00\u4e2a\u5f3a\u5927\u7684PDF\u751f\u6210\u5e93\uff0c\u53ef\u4ee5\u7528\u6765\u521b\u5efa\u590d\u6742\u7684PDF\u6587\u6863\u3002<\/p>\n<\/p>\n<p><h4>1. \u5b89\u88c5reportlab<\/h4>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u4f7f\u7528reportlab\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5b89\u88c5\u8fd9\u4e2a\u5e93\u3002\u53ef\u4ee5\u901a\u8fc7pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install reportlab<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2. \u521b\u5efa\u7b80\u5355\u7684PDF\u6587\u4ef6<\/h4>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684PDF\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from reportlab.lib.pagesizes import letter<\/p>\n<p>from reportlab.pdfgen import canvas<\/p>\n<p>def create_pdf(output_path):<\/p>\n<p>    c = canvas.Canvas(output_path, pagesize=letter)<\/p>\n<p>    c.drawString(100, 750, &quot;Hello, World!&quot;)<\/p>\n<p>    c.save()<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>create_pdf(&#39;hello_world.pdf&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3. \u521b\u5efa\u5305\u542b\u56fe\u50cf\u548c\u8868\u683c\u7684PDF\u6587\u4ef6<\/h4>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u56fe\u50cf\u548c\u8868\u683c\u7684PDF\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from reportlab.lib.pagesizes import letter<\/p>\n<p>from reportlab.pdfgen import canvas<\/p>\n<p>from reportlab.platypus import SimpleDocTemplate, Table, TableStyle<\/p>\n<p>from reportlab.lib import colors<\/p>\n<p>def create_pdf_with_image_and_table(output_path):<\/p>\n<p>    doc = SimpleDocTemplate(output_path, pagesize=letter)<\/p>\n<p>    elements = []<\/p>\n<p>    # \u6dfb\u52a0\u8868\u683c<\/p>\n<p>    data = [[&#39;Header1&#39;, &#39;Header2&#39;, &#39;Header3&#39;],<\/p>\n<p>            [&#39;Row1 Col1&#39;, &#39;Row1 Col2&#39;, &#39;Row1 Col3&#39;],<\/p>\n<p>            [&#39;Row2 Col1&#39;, &#39;Row2 Col2&#39;, &#39;Row2 Col3&#39;]]<\/p>\n<p>    table = Table(data)<\/p>\n<p>    table.setStyle(TableStyle([(&#39;BACKGROUND&#39;, (0, 0), (-1, 0), colors.grey),<\/p>\n<p>                               (&#39;TEXTCOLOR&#39;, (0, 0), (-1, 0), colors.whitesmoke),<\/p>\n<p>                               (&#39;ALIGN&#39;, (0, 0), (-1, -1), &#39;CENTER&#39;),<\/p>\n<p>                               (&#39;FONTNAME&#39;, (0, 0), (-1, 0), &#39;Helvetica-Bold&#39;),<\/p>\n<p>                               (&#39;BOTTOMPADDING&#39;, (0, 0), (-1, 0), 12),<\/p>\n<p>                               (&#39;BACKGROUND&#39;, (0, 1), (-1, -1), colors.beige),<\/p>\n<p>                               (&#39;GRID&#39;, (0, 0), (-1, -1), 1, colors.black)]))<\/p>\n<p>    elements.append(table)<\/p>\n<p>    # \u6dfb\u52a0\u56fe\u50cf<\/p>\n<p>    c = canvas.Canvas(output_path, pagesize=letter)<\/p>\n<p>    c.drawImage(&#39;path\/to\/image.jpg&#39;, 100, 400, width=200, height=150)<\/p>\n<p>    c.save()<\/p>\n<p>    doc.build(elements)<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>create_pdf_with_image_and_table(&#39;complex_document.pdf&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528pdfminer\u63d0\u53d6PDF\u5185\u5bb9<\/h3>\n<\/p>\n<p><p>pdfminer\u662f\u4e00\u4e2a\u7528\u4e8e\u4ecePDF\u6587\u6863\u4e2d\u63d0\u53d6\u6587\u672c\u5185\u5bb9\u7684\u5e93\u3002<\/p>\n<\/p>\n<p><h4>1. \u5b89\u88c5pdfminer<\/h4>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u4f7f\u7528pdfminer\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5b89\u88c5\u8fd9\u4e2a\u5e93\u3002\u53ef\u4ee5\u901a\u8fc7pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install pdfminer.six<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2. \u63d0\u53d6PDF\u6587\u672c\u5185\u5bb9<\/h4>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u7528\u4e8e\u4ecePDF\u6587\u4ef6\u4e2d\u63d0\u53d6\u6587\u672c\u5185\u5bb9\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from pdfminer.high_level import extract_text<\/p>\n<p>def extract_pdf_text(input_path):<\/p>\n<p>    text = extract_text(input_path)<\/p>\n<p>    return text<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>pdf_text = extract_pdf_text(&#39;input.pdf&#39;)<\/p>\n<p>print(pdf_text)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u4f7f\u7528pytesseract\u8fdb\u884cPDF\u4e2d\u7684\u56fe\u50cf\u6587\u5b57\u8bc6\u522b<\/h3>\n<\/p>\n<p><p>pytesseract\u662f\u4e00\u4e2a\u7528\u4e8e\u8fdb\u884c\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff08OCR\uff09\u7684\u5e93\uff0c\u53ef\u4ee5\u7528\u6765\u4ecePDF\u4e2d\u7684\u56fe\u50cf\u63d0\u53d6\u6587\u672c\u5185\u5bb9\u3002<\/p>\n<\/p>\n<p><h4>1. \u5b89\u88c5pytesseract\u548c\u4f9d\u8d56\u9879<\/h4>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u4f7f\u7528pytesseract\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5b89\u88c5\u8fd9\u4e2a\u5e93\u4ee5\u53caTesseract-OCR\u8f6f\u4ef6\u3002\u53ef\u4ee5\u901a\u8fc7pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install pytesseract<\/p>\n<p>pip install pillow  # \u7528\u4e8e\u56fe\u50cf\u5904\u7406<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u6b64\u5916\uff0c\u8fd8\u9700\u8981\u4eceTesseract-OCR\u7684\u5b98\u65b9\u7f51\u7ad9\u4e0b\u8f7d\u5e76\u5b89\u88c5Tesseract-OCR\u8f6f\u4ef6\u3002<\/p>\n<\/p>\n<p><h4>2. \u4ecePDF\u4e2d\u63d0\u53d6\u56fe\u50cf\u5e76\u8fdb\u884c\u6587\u5b57\u8bc6\u522b<\/h4>\n<\/p>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u7528\u4e8e\u4ecePDF\u6587\u4ef6\u4e2d\u63d0\u53d6\u56fe\u50cf\u5e76\u8fdb\u884c\u6587\u5b57\u8bc6\u522b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pytesseract<\/p>\n<p>from pdf2image import convert_from_path<\/p>\n<p>from PIL import Image<\/p>\n<p>def extract_text_from_pdf_images(pdf_path):<\/p>\n<p>    # \u5c06PDF\u8f6c\u6362\u4e3a\u56fe\u50cf<\/p>\n<p>    pages = convert_from_path(pdf_path, 300)<\/p>\n<p>    text = &quot;&quot;<\/p>\n<p>    for page in pages:<\/p>\n<p>        text += pytesseract.image_to_string(page)<\/p>\n<p>    return text<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>pdf_text = extract_text_from_pdf_images(&#39;input.pdf&#39;)<\/p>\n<p>print(pdf_text)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u7efc\u5408\u5e94\u7528\u793a\u4f8b<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u7efc\u5408\u4f7f\u7528\u4e0a\u8ff0\u591a\u4e2a\u5e93\u6765\u5b8c\u6210\u590d\u6742\u7684PDF\u5904\u7406\u4efb\u52a1\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7efc\u5408\u5e94\u7528\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u4ece\u591a\u4e2aPDF\u6587\u4ef6\u4e2d\u63d0\u53d6\u6587\u672c\u3001\u5408\u5e76PDF\u6587\u4ef6\u5e76\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u63d0\u53d6\u6587\u672c\u7684PDF\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import PyPDF2<\/p>\n<p>from reportlab.lib.pagesizes import letter<\/p>\n<p>from reportlab.pdfgen import canvas<\/p>\n<p>from pdfminer.high_level import extract_text<\/p>\n<p>from pathlib import Path<\/p>\n<p>def extract_text_from_pdfs(pdf_list):<\/p>\n<p>    all_text = &quot;&quot;<\/p>\n<p>    for pdf in pdf_list:<\/p>\n<p>        text = extract_text(pdf)<\/p>\n<p>        all_text += text + &quot;\\n\\n&quot;<\/p>\n<p>    return all_text<\/p>\n<p>def merge_pdfs(pdf_list, output_path):<\/p>\n<p>    pdf_writer = PyPDF2.PdfFileWriter()<\/p>\n<p>    for pdf in pdf_list:<\/p>\n<p>        pdf_reader = PyPDF2.PdfFileReader(pdf)<\/p>\n<p>        for page_num in range(pdf_reader.getNumPages()):<\/p>\n<p>            page = pdf_reader.getPage(page_num)<\/p>\n<p>            pdf_writer.addPage(page)<\/p>\n<p>    with open(output_path, &#39;wb&#39;) as out:<\/p>\n<p>        pdf_writer.write(out)<\/p>\n<p>def create_pdf_with_text(output_path, text):<\/p>\n<p>    c = canvas.Canvas(output_path, pagesize=letter)<\/p>\n<p>    text_object = c.beginText(40, 750)<\/p>\n<p>    text_object.setFont(&quot;Helvetica&quot;, 12)<\/p>\n<p>    for line in text.split(&quot;\\n&quot;):<\/p>\n<p>        text_object.textLine(line)<\/p>\n<p>    c.drawText(text_object)<\/p>\n<p>    c.save()<\/p>\n<h2><strong>\u793a\u4f8b\u4f7f\u7528<\/strong><\/h2>\n<p>pdf_files = [&#39;file1.pdf&#39;, &#39;file2.pdf&#39;, &#39;file3.pdf&#39;]<\/p>\n<h2><strong>\u63d0\u53d6\u6587\u672c<\/strong><\/h2>\n<p>extracted_text = extract_text_from_pdfs(pdf_files)<\/p>\n<h2><strong>\u5408\u5e76PDF\u6587\u4ef6<\/strong><\/h2>\n<p>merged_pdf_path = &#39;merged.pdf&#39;<\/p>\n<p>merge_pdfs(pdf_files, merged_pdf_path)<\/p>\n<h2><strong>\u521b\u5efa\u5305\u542b\u63d0\u53d6\u6587\u672c\u7684PDF\u6587\u4ef6<\/strong><\/h2>\n<p>output_text_pdf_path = &#39;extracted_text.pdf&#39;<\/p>\n<p>create_pdf_with_text(output_text_pdf_path, 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