{"id":916,"date":"2026-03-12T18:24:35","date_gmt":"2026-03-12T18:24:35","guid":{"rendered":"https:\/\/blog.nimail.cn\/?p=916"},"modified":"2026-03-12T18:24:35","modified_gmt":"2026-03-12T18:24:35","slug":"2026%e8%85%be%e8%ae%af-%e5%8d%8e%e4%b8%ba%e5%ae%9e%e6%88%98-%e4%bc%81%e4%b8%9a%e7%ba%a7pdf%e5%af%b9%e6%af%94%e5%85%a8%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/blog.nimail.cn\/best-articles\/2026%e8%85%be%e8%ae%af-%e5%8d%8e%e4%b8%ba%e5%ae%9e%e6%88%98-%e4%bc%81%e4%b8%9a%e7%ba%a7pdf%e5%af%b9%e6%af%94%e5%85%a8%e6%b5%81%e7%a8%8b\/","title":{"rendered":"2026\u817e\u8baf+\u534e\u4e3a\u5b9e\u6218\uff1a\u4f01\u4e1a\u7ea7PDF\u5bf9\u6bd4\u5168\u6d41\u7a0b"},"content":{"rendered":"<div>\n<h2 class=\"h2 mt-3\">\u4f01\u4e1a\u7ea7 PDF \u5bf9\u6bd4\u5b9e\u8df5\uff08\u5f00\u53d1\u8005\u89c6\u89d2\uff09<\/h2>\n<p>\u5728\u65e5\u5e38\u7684\u6587\u6863\u5ba1\u8ba1\u3001\u5408\u540c\u7ba1\u7406\u6216\u7248\u672c\u63a7\u5236\u573a\u666f\u4e0b\uff0c<strong>pdf\u6587\u4ef6\u5bf9\u6bd4<\/strong>\u6210\u4e3a\u4e00\u4e2a\u9ad8\u9891\u9700\u6c42\u3002\u672c\u6587\u4ece\u5f00\u53d1\u8005\u7684\u89d2\u5ea6\uff0c\u4ecb\u7ecd\u51e0\u79cd\u53ef\u843d\u5730\u7684\u6280\u672f\u8def\u5f84\uff0c\u5e76\u4ee5\u7ebf\u4e0a\u5de5\u5177 <a href=\"https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\" target=\"_blank\" rel=\"noopener noreferrer\">nimail \u7684 PDF \u5bf9\u6bd4<\/a> \u4e3a\u6848\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728\u4ea7\u54c1\u4e2d\u5b9e\u73b0 <span class=\"badge bg-primary\">pdf\u5bf9\u6bd4<\/span> \u4e0e <span class=\"badge bg-secondary\">pdf\u5728\u7ebf\u5bf9\u6bd4<\/span> \u529f\u80fd\u3002<\/p>\n<div class=\"alert alert-info\" role=\"alert\">\n    Tip\uff1a\u5982\u679c\u4f60\u66f4\u5173\u5fc3\u7684\u662f\u53ef\u89c6\u5316\u5dee\u5f02\uff08\u9ad8\u4eae\u3001\u9875\u9762\u5bf9\u9f50\uff09\uff0c\u4f18\u5148\u9009\u62e9\u57fa\u4e8e\u6e32\u67d3\uff08\u56fe\u7247\/Canvas\uff09\u7684\u65b9\u6cd5\uff1b\u5982\u679c\u53ea\u9700\u8981\u6587\u672c\u5dee\u5f02\uff0c\u63d0\u53d6\u6587\u672c\u5e76\u7528\u5dee\u5f02\u7b97\u6cd5\u4f1a\u66f4\u9ad8\u6548\u3002\n  <\/div>\n<h3 class=\"h3 mt-4\">\u4e00\u3001\u5b9e\u73b0\u601d\u8def\u6982\u89c8\uff08\u9002\u5408\u4ea7\u54c1\u8bbe\u8ba1\u4e0e\u6280\u672f\u9009\u578b\uff09<\/h3>\n<p>\u5e38\u89c1\u7684 <strong>pdf\u6bd4\u8f83<\/strong> \u6280\u672f\u8def\u5f84\u53ef\u4ee5\u5206\u4e3a\u4e09\u7c7b\uff1a<\/p>\n<ul>\n<li><strong>\u6587\u672c\u5c42\u6bd4\u5bf9<\/strong>\uff1a\u63d0\u53d6 PDF \u4e2d\u7684\u6587\u672c\u5185\u5bb9\uff0c\u505a\u5b57\u7b26\u4e32\u6216\u884c\u7ea7\u5dee\u5f02\uff08\u9002\u7528\u4e8e\u6587\u5b57\u4e3a\u4e3b\u7684\u6587\u6863\uff0c\u901f\u5ea6\u5feb\uff09\u3002<\/li>\n<li><strong>\u6e32\u67d3\u5c42\u6bd4\u5bf9<\/strong>\uff1a\u5c06\u6bcf\u9875\u6e32\u67d3\u4e3a\u56fe\u7247\u540e\u9010\u50cf\u7d20\u6bd4\u8f83\u6216\u57fa\u4e8e\u56fe\u50cf\u5dee\u5f02\u68c0\u6d4b\uff08\u9002\u7528\u4e8e\u542b\u5927\u91cf\u6392\u7248\/\u56fe\u8868\u7684\u6587\u6863\uff09\u3002<\/li>\n<li><strong>\u7ed3\u6784\u5316\u6bd4\u5bf9<\/strong>\uff1a\u89e3\u6790 PDF \u5143\u6570\u636e\u3001\u8868\u683c\u3001\u6ce8\u91ca\u7b49\uff0c\u9010\u5b57\u6bb5\u5bf9\u6bd4\uff08\u9002\u5408\u590d\u6742\u5408\u540c\u6216\u8868\u5355\u7c7b\u6587\u6863\uff09\u3002<\/li>\n<\/ul>\n<div class=\"card my-3\">\n<div class=\"card-body\">\n<h4 class=\"card-title\">nimail \u5728\u7ebf\u5bf9\u6bd4\u6848\u4f8b<\/h4>\n<p class=\"card-text\">\u5728 <a href=\"https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\" target=\"_blank\" rel=\"noopener noreferrer\">nimail \u7684 PDF \u5bf9\u6bd4\u9875\u9762<\/a>\uff0c\u4f60\u53ef\u4ee5\u4f53\u9a8c\u5b8c\u6574\u7684 <strong>pdf\u5728\u7ebf\u6bd4\u8f83<\/strong> \u6d41\u7a0b\uff1a\u6587\u4ef6\u4e0a\u4f20\u3001\u9875\u9762\u540c\u6b65\u6d4f\u89c8\u3001\u9ad8\u4eae\u5dee\u5f02\u3001\u5bfc\u51fa\u6bd4\u5bf9\u62a5\u544a\u7b49\u3002\u5bf9\u4e8e\u60f3\u5feb\u901f\u9a8c\u8bc1\u4ea7\u54c1\u65b9\u6848\u7684\u56e2\u961f\uff0cnimail \u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ef\u4ea4\u4e92\u7684\u53c2\u8003\u5b9e\u73b0\u3002<\/p>\n<p><span class=\"badge bg-success\">\u5728\u7ebf\u6f14\u793a<\/span> <span class=\"badge bg-warning text-dark\">\u9ad8\u4eae\u5dee\u5f02<\/span><\/p>\n<\/p><\/div>\n<\/p><\/div>\n<h3 class=\"h3 mt-4\">\u4e8c\u3001\u5f00\u53d1\u8005\u5b9e\u6218\uff1a\u7528 Python \u505a\u5feb\u901f PDF \u6587\u672c\u5bf9\u6bd4<\/h3>\n<p>\u5982\u679c\u4f60\u9700\u8981\u4e00\u4e2a\u8f7b\u91cf\u7684\u672c\u5730\u5de5\u5177\u6765\u505a <strong>pdf\u6587\u6863\u5bf9\u6bd4<\/strong>\uff0c\u4e0b\u9762\u7ed9\u51fa\u4e00\u4e2a\u5e38\u7528\u7684\u5b9e\u73b0\u601d\u8def\uff1a\u7528 PyPDF2 \u63d0\u53d6\u6587\u672c\uff0c\u7136\u540e\u7528 difflib \u751f\u6210\u5dee\u5f02\u3002\u9002\u5408\u505a\u7b2c\u4e00\u8f6e\u6587\u672c\u6bd4\u5bf9\u3002<\/p>\n<pre class=\"card p-3\"><code># Python \u793a\u4f8b\uff1a\u63d0\u53d6\u4e24\u4efd PDF \u7684\u6587\u672c\u5e76\u505a\u5dee\u5f02\u6bd4\u8f83\nimport PyPDF2\nimport difflib\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\ntext_a = extract_text('a.pdf')\ntext_b = extract_text('b.pdf')\n\nd = difflib.unified_diff(text_a.splitlines(), text_b.splitlines(), lineterm='')\nfor line in d:\n    print(line)\n<\/code><\/pre>\n<p>\u8be5\u65b9\u5f0f\u4f18\u70b9\u662f\u5b9e\u73b0\u7b80\u5355\u3001\u4f9d\u8d56\u5c11\uff1b\u7f3a\u70b9\u662f\u65e0\u6cd5\u8bc6\u522b\u5e03\u5c40\u53d8\u5316\u3001\u56fe\u7247\u6216\u7b7e\u7ae0\u5dee\u5f02\u3002\u5bf9\u4e8e\u4f01\u4e1a\u7ea7\u4ea7\u54c1\uff0c\u5e38\u628a\u5b83\u4f5c\u4e3a\u9884\u7b5b\u67e5\u6b65\u9aa4\u3002<\/p>\n<div class=\"table-responsive\">\n<table class=\"table table-bordered mt-3\">\n<thead class=\"table-light\">\n<tr>\n<th>\u65b9\u6cd5<\/th>\n<th>\u4f18\u70b9<\/th>\n<th>\u7f3a\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6587\u672c\u5c42\u6bd4\u5bf9<\/td>\n<td>\u901f\u5ea6\u5feb\u3001\u6613\u4e8e\u5b9e\u73b0\u3001\u53ef\u505a\u5b57\u7ea7\u5dee\u5f02<\/td>\n<td>\u5ffd\u7565\u6392\u7248\u4e0e\u56fe\u7247\u53d8\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u6e32\u67d3\u5c42\u6bd4\u5bf9<\/td>\n<td>\u4fdd\u7559\u89c6\u89c9\u4e00\u81f4\u6027\uff0c\u53ef\u68c0\u6d4b\u7248\u5f0f\u6216\u56fe\u7247\u5dee\u5f02<\/td>\n<td>\u8ba1\u7b97\u91cf\u5927\uff0c\u9700\u4f18\u5316\u6027\u80fd<\/td>\n<\/tr>\n<tr>\n<td>\u7ed3\u6784\u5316\u6bd4\u5bf9<\/td>\n<td>\u6700\u7cbe\u51c6\uff08\u8868\u683c\u3001\u6ce8\u91ca\u3001\u7b7e\u540d\u7b49\uff09<\/td>\n<td>\u5b9e\u73b0\u590d\u6742\uff0c\u9700\u89e3\u6790\u591a\u79cd\u5bf9\u8c61<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h4 class=\"h4 mt-4\">\u4e09\u3001\u90e8\u7f72\u4e0e\u6027\u80fd\u8003\u91cf\uff08\u9762\u5411\u751f\u4ea7\u73af\u5883\uff09<\/h4>\n<p>\u5728\u628a <strong>pdf\u5728\u7ebf\u5bf9\u6bd4<\/strong> \u63a8\u5230\u751f\u4ea7\u4e4b\u524d\uff0c\u9700\u8981\u8003\u8651\uff1a<\/p>\n<ul>\n<li>\u5e76\u53d1\u5904\u7406\uff1a\u6e32\u67d3\u5f0f\u6bd4\u5bf9\u9700\u8981 GPU\/\u591a\u6838\u5e76\u884c\u6765\u964d\u4f4e\u5ef6\u8fdf\u3002<\/li>\n<li>\u9632\u7be1\u6539\u4e0e\u9690\u79c1\uff1a\u4e0a\u4f20\u7684 PDF \u53ef\u80fd\u5305\u542b\u654f\u611f\u4fe1\u606f\uff0c\u5fc5\u987b\u505a\u597d\u4f20\u8f93\u52a0\u5bc6\u548c\u4e34\u65f6\u6587\u4ef6\u9500\u6bc1\u3002<\/li>\n<li>\u5dee\u5f02\u5c55\u793a\uff1a\u7528\u6237\u4f53\u9a8c\u5f88\u91cd\u8981\uff0c\u50cf nimail \u90a3\u6837\u63d0\u4f9b\u9875\u9762\u540c\u6b65\u6eda\u52a8\u3001\u5dee\u5f02\u9ad8\u4eae\u548c\u5bfc\u51fa\u529f\u80fd\uff0c\u4f1a\u5927\u5e45\u63d0\u5347\u6613\u7528\u6027\u3002<\/li>\n<\/ul>\n<div class=\"alert alert-warning mt-3\" role=\"alert\">\n    \u6ce8\u610f\uff1a\u8bb8\u591a\u5f00\u6e90\u5e93\u5728\u5904\u7406\u590d\u6742\u8868\u683c\u6216\u4e2d\u6587\u6392\u7248\u65f6\u7ed3\u679c\u4e0d\u7a33\u5b9a\uff0c\u751f\u4ea7\u7cfb\u7edf\u5efa\u8bae\u7ed3\u5408\u591a\u79cd\u7b56\u7565\uff08\u6587\u672c+\u6e32\u67d3+\u7ed3\u6784\u5316\uff09\u6765\u63d0\u9ad8\u8986\u76d6\u7387\u3002\n  <\/div>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u8bc4\u4f30\u7b2c\u4e09\u65b9\u65b9\u6848\uff0c\u5148\u7528 <strong>pdf\u6587\u4ef6\u5bf9\u6bd4<\/strong> \u7684\u5178\u578b\u6837\u4f8b\uff08\u542b\u56fe\u7247\u3001\u8868\u683c\u4e0e\u4e0d\u540c\u7248\u672c\u7684 OCR \u6587\u6863\uff09\u8dd1\u4e00\u904d\uff0c\u5c24\u5176\u5173\u6ce8\u5dee\u5f02\u5b9a\u4f4d\u7684\u51c6\u786e\u6027\u548c\u5bfc\u51fa\u62a5\u544a\u7684\u53ef\u8bfb\u6027\u3002\u7ebf\u4e0a\u5de5\u5177\u5982 <a href=\"https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\" target=\"_blank\" rel=\"noopener noreferrer\">nimail PDF \u5bf9\u6bd4<\/a> \u53ef\u4ee5\u4f5c\u4e3a\u5bf9\u6bd4\u57fa\u51c6\u3002<\/p>\n<p class=\"mt-4\">\u5728\u4ea7\u54c1\u8def\u7ebf\u56fe\u4e0a\uff0c\u628a <span class=\"badge bg-info\">pdf\u6bd4\u8f83<\/span> \u529f\u80fd\u62c6\u6210\u5c0f\u6b65\u4ea4\u4ed8\uff1a\u57fa\u7840\u6587\u672c\u6bd4\u5bf9 -> \u9875\u9762\u7ea7\u5dee\u5f02\u89c6\u56fe -> \u62a5\u544a\u5bfc\u51fa -> \u6743\u9650\u4e0e\u5ba1\u8ba1\u65e5\u5fd7\u3002\u8fd9\u6837\u65e2\u80fd\u5feb\u901f\u9a8c\u8bc1\u4ef7\u503c\uff0c\u4e5f\u4fbf\u4e8e\u9010\u6b65\u6269\u5c55\u5230\u5b8c\u6574\u7684 <strong>pdf\u6587\u6863\u5bf9\u6bd4<\/strong> \u80fd\u529b\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9762\u5411\u5f00\u53d1\u8005\u7684\u5b9e\u6218\u6307\u5357\uff1a\u5982\u4f55\u5b9e\u73b0\u9ad8\u6548\u7684pdf\u5bf9\u6bd4\u4e0epdf\u5728\u7ebf\u5bf9\u6bd4\uff0c\u5305\u542b\u5728\u7ebf\u6848\u4f8b\uff08nimail\uff09\u4e0ePython\u793a\u4f8b\uff0c\u9002\u7528\u4f01\u4e1a\u7ea7pdf\u6587\u4ef6\u5bf9\u6bd4\u9700\u6c42\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":[158,188,130],"class_list":["post-916","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>2026\u817e\u8baf+\u534e\u4e3a\u5b9e\u6218\uff1a\u4f01\u4e1a\u7ea7PDF\u5bf9\u6bd4\u5168\u6d41\u7a0b - nimail blog<\/title>\n<meta name=\"description\" content=\"\u9762\u5411\u5f00\u53d1\u8005\u7684\u5b9e\u6218\u6307\u5357\uff1a\u5982\u4f55\u5b9e\u73b0\u9ad8\u6548\u7684pdf\u5bf9\u6bd4\u4e0epdf\u5728\u7ebf\u5bf9\u6bd4\uff0c\u5305\u542b\u5728\u7ebf\u6848\u4f8b\uff08nimail\uff09\u4e0ePython\u793a\u4f8b\uff0c\u9002\u7528\u4f01\u4e1a\u7ea7pdf\u6587\u4ef6\u5bf9\u6bd4\u9700\u6c42\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\/2026\u817e\u8baf-\u534e\u4e3a\u5b9e\u6218-\u4f01\u4e1a\u7ea7pdf\u5bf9\u6bd4\u5168\u6d41\u7a0b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2026\u817e\u8baf+\u534e\u4e3a\u5b9e\u6218\uff1a\u4f01\u4e1a\u7ea7PDF\u5bf9\u6bd4\u5168\u6d41\u7a0b - nimail blog\" \/>\n<meta property=\"og:description\" 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