{"id":940,"date":"2026-03-20T00:24:59","date_gmt":"2026-03-20T00:24:59","guid":{"rendered":"https:\/\/blog.nimail.cn\/?p=940"},"modified":"2026-03-20T00:24:59","modified_gmt":"2026-03-20T00:24:59","slug":"%e5%ae%9e%e6%88%98%e6%8c%87%e5%8d%97-%e9%ab%98%e6%95%88pdf%e5%af%b9%e6%af%94%e4%b8%8e%e5%9c%a8%e7%ba%bf%e6%af%94%e8%be%83%e6%8a%80%e5%b7%a7%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/blog.nimail.cn\/best-articles\/%e5%ae%9e%e6%88%98%e6%8c%87%e5%8d%97-%e9%ab%98%e6%95%88pdf%e5%af%b9%e6%af%94%e4%b8%8e%e5%9c%a8%e7%ba%bf%e6%af%94%e8%be%83%e6%8a%80%e5%b7%a7%e8%af%a6%e8%a7%a3\/","title":{"rendered":"\u5b9e\u6218\u6307\u5357\uff1a\u9ad8\u6548PDF\u5bf9\u6bd4\u4e0e\u5728\u7ebf\u6bd4\u8f83\u6280\u5de7\u8be6\u89e3"},"content":{"rendered":"<div class='px-2'>\n<h2 class='mt-3'>\u4e3a\u4ec0\u4e48\u9700\u8981\u505a PDF \u5bf9\u6bd4\uff08pdf\u5bf9\u6bd4 \/ pdf\u6bd4\u8f83\uff09<\/h2>\n<p>\u5728\u65e5\u5e38\u5f00\u53d1\u4e0e\u6587\u6863\u6821\u5bf9\u4e2d\uff0c<strong>PDF\u6587\u4ef6\u5bf9\u6bd4<\/strong>\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u9700\u6c42\u3002\u5c24\u5176\u5728\u5ba1\u8ba1\u3001\u5408\u540c\u3001\u53d1\u7968\u7b49\u573a\u666f\uff0c\u6587\u6863\u7684\u5c0f\u5e45\u6539\u52a8\u53ef\u80fd\u5e26\u6765\u4e1a\u52a1\u98ce\u9669\u3002\u5e38\u89c1\u505a\u6cd5\u5305\u62ec\u672c\u5730\u811a\u672c\u6bd4\u5bf9\u3001\u4f7f\u7528\u684c\u9762\u8f6f\u4ef6\uff0c\u6216\u91c7\u7528\u5728\u7ebf\u670d\u52a1\u8fdb\u884c <span class='badge bg-primary'>pdf\u5728\u7ebf\u5bf9\u6bd4<\/span>\u3002<\/p>\n<div class='alert alert-info' role='alert'>\n    \u4f5c\u4e3a\u5f00\u53d1\u8005\uff0c\u6211\u66f4\u503e\u5411\u4e8e\u628a\u81ea\u52a8\u5316\u6d41\u7a0b\u653e\u5728 CI\/CD \u4e2d\uff0c\u4f46\u5728\u5feb\u901f\u9a8c\u8bc1\u548c\u975e\u7ed3\u6784\u5316\u6587\u672c\u6bd4\u5bf9\u573a\u666f\uff0c<strong>\u5728\u7ebf\u5de5\u5177<\/strong>\u662f\u6700\u9ad8\u6548\u7684\u8d77\u70b9\u3002\n  <\/div>\n<h3 class='mt-4'>\u5e38\u89c1\u7684\u6bd4\u5bf9\u65b9\u6848\u4e0e\u9002\u7528\u573a\u666f<\/h3>\n<div class='card mb-3'>\n<div class='card-body'>\n<ul>\n<li><strong>\u672c\u5730\u811a\u672c<\/strong>\uff08\u4f8b\u5982 Python \u63d0\u53d6\u6587\u672c\u540e\u6bd4\u5bf9\uff09\uff1a\u9002\u5408\u79c1\u6709\u5316\u3001\u53ef\u5b9a\u5236\u5316\u5f3a\u7684\u573a\u666f\u3002<\/li>\n<li><strong>\u684c\u9762\u8f6f\u4ef6<\/strong>\uff1a\u9002\u5408\u590d\u6742\u7248\u5f0f\u3001\u89c6\u89c9\u5bf9\u6bd4\uff0c\u4f46\u81ea\u52a8\u5316\u5dee\u3002<\/li>\n<li><strong>\u5728\u7ebf\u5de5\u5177\uff08pdf\u5728\u7ebf\u6bd4\u8f83\uff09<\/strong>\uff1a\u5feb\u901f\u3001\u65e0\u9700\u90e8\u7f72\uff0c\u4fbf\u4e8e\u4e34\u65f6\u6821\u9a8c\u4e0e\u56e2\u961f\u534f\u4f5c\u3002<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<h2 class='mt-4'>\u4ee5 nimail \u7684\u5728\u7ebf\u5bf9\u6bd4\u4e3a\u4f8b\uff1a\u5b9e\u8df5\u4e0e\u5bf9\u6bd4<\/h2>\n<p>\u63a8\u8350\u7684\u5728\u7ebf\u6848\u4f8b\u5730\u5740\uff1a<a href='https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html' target='_blank' rel='noopener'>https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html<\/a>\u3002\u8be5\u5de5\u5177\u9875\u9762\u63d0\u4f9b\u5feb\u901f\u4e0a\u4f20\u5e76\u53ef\u89c6\u5316\u5dee\u5f02\u7684\u529f\u80fd\uff0c\u9002\u5408\u505a\u4e00\u6b21\u6027\u6216\u5feb\u901f\u6821\u9a8c\u3002<\/p>\n<div class='row'>\n<div class='col-12 col-md-6'>\n<div class='card mb-3'>\n<div class='card-body'>\n<h4 class='card-title'>\u5728\u7ebf\u5bf9\u6bd4\u7684\u4f18\u52bf<\/h4>\n<p>\u514d\u90e8\u7f72\u3001\u754c\u9762\u76f4\u89c2\u3001\u53ef\u89c6\u5316\u5dee\u5f02\uff08\u9ad8\u4eae\u663e\u793a\uff09\uff0c\u5bf9\u4ea7\u54c1\u7ecf\u7406\u3001\u6cd5\u52a1\u540c\u5b66\u975e\u5e38\u53cb\u597d\u3002<\/p>\n<p>          <span class='badge bg-success me-1'>\u65b9\u4fbf<\/span><br \/>\n          <span class='badge bg-warning text-dark me-1'>\u5feb\u901f<\/span>\n        <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class='col-12 col-md-6'>\n<div class='card mb-3 border-warning'>\n<div class='card-body'>\n<h4 class='card-title'>\u9700\u8981\u6ce8\u610f\u7684\u95ee\u9898<\/h4>\n<ul>\n<li>\u6570\u636e\u9690\u79c1\uff1a\u654f\u611f\u5408\u540c\u4e0d\u5b9c\u76f4\u63a5\u4e0a\u4f20\u7b2c\u4e09\u65b9\u670d\u52a1\u3002<\/li>\n<li>\u683c\u5f0f\u5dee\u5f02\uff1a\u6709\u65f6\u7248\u5f0f\u53d8\u5316\uff08\u9875\u7709\u9875\u811a\uff09\u5bfc\u81f4\u5927\u91cf\u566a\u58f0\u5dee\u5f02\u3002<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<h3 class='mt-3'>\u5feb\u901f\u5b9e\u73b0\uff1aPython\u6587\u672c\u63d0\u53d6\u5e76\u505a\u7b80\u5355\u6bd4\u5bf9\uff08\u793a\u4f8b\uff09<\/h3>\n<p>\u5f53\u4f60\u9700\u8981\u5728\u5f00\u53d1\u6d41\u6c34\u7ebf\u4e2d\u5b9e\u73b0 <strong>pdf\u6587\u4ef6\u5bf9\u6bd4<\/strong>\uff0c\u53ef\u4ee5\u5148\u5c1d\u8bd5\u62bd\u53d6\u6587\u672c\u518d\u505a\u5dee\u5f02\u5206\u6790\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u4e8e PyPDF2 \u7684\u793a\u4f8b\uff08\u7528\u4e8e\u6f14\u793a\u6587\u672c\u5c42\u9762\u6bd4\u5bf9\uff09\uff1a<\/p>\n<pre><code class='language-python'>import PyPDF2\n\ndef extract_text(path):\n    text = []\n    with open(path, 'rb') as f:\n        reader = PyPDF2.PdfReader(f)\n        for page in reader.pages:\n            text.append(page.extract_text() or '')\n    return '\\n'.join(text)\n\na = extract_text('old.pdf')\nb = extract_text('new.pdf')\n\n# \u7b80\u5355\u884c\u7ea7\u5dee\u5f02\uff08\u53ef\u66ff\u6362\u4e3a difflib \u6216\u66f4\u590d\u6742\u7684 NLP\uff09\nimport difflib\nfor line in difflib.unified_diff(a.splitlines(), b.splitlines(), lineterm=''):\n    print(line)\n<\/code><\/pre>\n<div class='alert alert-secondary' role='alert'>\n    \u4e0a\u8ff0\u65b9\u5f0f\u9002\u5408\u505a <strong>pdf\u6587\u6863\u5bf9\u6bd4<\/strong> \u7684\u6587\u672c\u5c42\u9762\u5dee\u5f02\u68c0\u6d4b\uff1b\u82e5\u9700\u53ef\u89c6\u5316\u6216\u4fdd\u7559\u5e03\u5c40\u4fe1\u606f\uff0c\u63a8\u8350\u4f7f\u7528\u50cf nimail \u7684 <span class='fw-bold'>pdf\u5728\u7ebf\u6bd4\u8f83<\/span> \u5de5\u5177\u3002\n  <\/div>\n<h2 class='mt-4'>\u65b9\u6cd5\u5bf9\u6bd4\u8868\uff1a\u9009\u62e9\u6700\u5408\u9002\u7684 pdf \u5bf9\u6bd4 \u65b9\u6848<\/h2>\n<div class='table-responsive'>\n<table class='table table-striped w-100'>\n<thead>\n<tr>\n<th>\u65b9\u6848<\/th>\n<th>\u4f18\u70b9<\/th>\n<th>\u7f3a\u70b9<\/th>\n<th>\u9002\u7528\u573a\u666f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u672c\u5730\u811a\u672c\uff08Python\uff09<\/td>\n<td>\u53ef\u5b9a\u5236\u3001\u6613\u96c6\u6210\u5230 CI<\/td>\n<td>\u5bf9\u590d\u6742\u7248\u5f0f\u652f\u6301\u5f31<\/td>\n<td>\u81ea\u52a8\u5316\u6d41\u6c34\u7ebf\u3001\u9690\u79c1\u654f\u611f<\/td>\n<\/tr>\n<tr>\n<td>\u684c\u9762\u8f6f\u4ef6<\/td>\n<td>\u89c6\u89c9\u5bf9\u6bd4\u5f3a\u3001\u4eba\u5de5\u64cd\u4f5c\u53cb\u597d<\/td>\n<td>\u4e0d\u6613\u81ea\u52a8\u5316\u3001\u9700\u6388\u6743<\/td>\n<td>\u8bbe\u8ba1\u7a3f\u3001\u7248\u5f0f\u6821\u5bf9<\/td>\n<\/tr>\n<tr>\n<td>\u5728\u7ebf\u5de5\u5177\uff08\u5982 nimail\uff09<\/td>\n<td>\u5feb\u901f\u53ef\u89c6\u5316\u3001\u514d\u90e8\u7f72<\/td>\n<td>\u6570\u636e\u9700\u4e0a\u4f20\u3001\u9690\u79c1\u9700\u6ce8\u610f<\/td>\n<td>\u4e34\u65f6\u6821\u9a8c\u3001\u56e2\u961f\u5171\u4eab<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h4 class='mt-3'>\u5b9e\u8df5\u5efa\u8bae\uff08\u4f5c\u4e3a\u5f00\u53d1\u8005\u7684\u51e0\u6761\u7ecf\u9a8c\uff09<\/h4>\n<ul>\n<li>\u5bf9\u4e8e\u5173\u952e\u5408\u540c\uff0c\u4f18\u5148\u4f7f\u7528\u672c\u5730\u811a\u672c\u6216\u81ea\u5efa\u670d\u52a1\u5b8c\u6210 <strong>pdf\u6587\u4ef6\u5bf9\u6bd4<\/strong>\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u5b89\u5168\u3002<\/li>\n<li>\u5728\u65e9\u671f\u9a8c\u6536\u6216\u5feb\u901f\u68c0\u67e5\u573a\u666f\uff0c\u5229\u7528 <a href='https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html' target='_blank' rel='noopener'>nimail \u5728\u7ebf\u5bf9\u6bd4<\/a> \u80fd\u660e\u663e\u8282\u7701\u65f6\u95f4\u3002<\/li>\n<li>\u82e5\u5dee\u5f02\u566a\u58f0\u8f83\u591a\uff0c\u5148\u505a\u9875\u7709\u9875\u811a\u3001\u65e5\u671f\u7b49\u7ed3\u6784\u5316\u5b57\u6bb5\u7684\u8fc7\u6ee4\uff0c\u518d\u505a\u5168\u6587\u6bd4\u5bf9\u3002<\/li>\n<\/ul>\n<div class='alert alert-success mt-3' role='alert'>\n    \u603b\u7ed3\u4e00\u53e5\u8bdd\uff1a<strong>pdf\u5728\u7ebf\u6bd4\u8f83<\/strong>\uff08\u5982 nimail\uff09\u662f\u5feb\u901f\u9a8c\u8bc1\u7684\u597d\u5de5\u5177\uff0c\u800c\u5728\u81ea\u52a8\u5316\u548c\u9690\u79c1\u8981\u6c42\u9ad8\u7684\u573a\u666f\u4e0b\uff0c\u5e94\u4f18\u5148\u8003\u8651\u672c\u5730\u5316\u7684 pdf \u5bf9\u6bd4 \u6d41\u7a0b\u3002\n  <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece\u5f00\u53d1\u8005\u89c6\u89d2\u8bb2\u89e3PDF\u5bf9\u6bd4\u4e0epdf\u5728\u7ebf\u5bf9\u6bd4\u65b9\u6cd5\uff0c\u5305\u542bPython\u793a\u4f8b\u4e0e\u5728\u7ebf\u5de5\u5177\u6848\u4f8b https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\uff0c\u5e2e\u52a9\u5feb\u901f\u9009\u62e9\u5408\u9002\u65b9\u6848\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[188,130,181],"class_list":["post-940","post","type-post","status-publish","format-standard","hentry","category-best-articles","tag-pdf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5b9e\u6218\u6307\u5357\uff1a\u9ad8\u6548PDF\u5bf9\u6bd4\u4e0e\u5728\u7ebf\u6bd4\u8f83\u6280\u5de7\u8be6\u89e3 - nimail blog<\/title>\n<meta name=\"description\" content=\"\u4ece\u5f00\u53d1\u8005\u89c6\u89d2\u8bb2\u89e3PDF\u5bf9\u6bd4\u4e0epdf\u5728\u7ebf\u5bf9\u6bd4\u65b9\u6cd5\uff0c\u5305\u542bPython\u793a\u4f8b\u4e0e\u5728\u7ebf\u5de5\u5177\u6848\u4f8b https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\uff0c\u5e2e\u52a9\u5feb\u901f\u9009\u62e9\u5408\u9002\u65b9\u6848\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.nimail.cn\/best-articles\/\u5b9e\u6218\u6307\u5357-\u9ad8\u6548pdf\u5bf9\u6bd4\u4e0e\u5728\u7ebf\u6bd4\u8f83\u6280\u5de7\u8be6\u89e3\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5b9e\u6218\u6307\u5357\uff1a\u9ad8\u6548PDF\u5bf9\u6bd4\u4e0e\u5728\u7ebf\u6bd4\u8f83\u6280\u5de7\u8be6\u89e3 - nimail blog\" \/>\n<meta property=\"og:description\" content=\"\u4ece\u5f00\u53d1\u8005\u89c6\u89d2\u8bb2\u89e3PDF\u5bf9\u6bd4\u4e0epdf\u5728\u7ebf\u5bf9\u6bd4\u65b9\u6cd5\uff0c\u5305\u542bPython\u793a\u4f8b\u4e0e\u5728\u7ebf\u5de5\u5177\u6848\u4f8b https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\uff0c\u5e2e\u52a9\u5feb\u901f\u9009\u62e9\u5408\u9002\u65b9\u6848\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.nimail.cn\/best-articles\/\u5b9e\u6218\u6307\u5357-\u9ad8\u6548pdf\u5bf9\u6bd4\u4e0e\u5728\u7ebf\u6bd4\u8f83\u6280\u5de7\u8be6\u89e3\/\" \/>\n<meta property=\"og:site_name\" content=\"nimail blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-20T00:24:59+00:00\" \/>\n<meta name=\"author\" content=\"\u4e00\u7ebf\u7801\u519c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u4e00\u7ebf\u7801\u519c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" 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