{"id":924,"date":"2026-03-15T00:24:12","date_gmt":"2026-03-15T00:24:12","guid":{"rendered":"https:\/\/blog.nimail.cn\/?p=924"},"modified":"2026-03-15T00:24:12","modified_gmt":"2026-03-15T00:24:12","slug":"2024%e5%b9%b4%e8%85%be%e8%ae%afpdf%e5%9c%a8%e7%ba%bf%e5%af%b9%e6%af%94%e5%ae%9e%e6%88%98%e5%85%a8%e6%94%bb%e7%95%a5%e5%bc%80%e5%8f%91%e8%80%85%e5%bf%85%e5%a4%87","status":"publish","type":"post","link":"https:\/\/blog.nimail.cn\/best-articles\/2024%e5%b9%b4%e8%85%be%e8%ae%afpdf%e5%9c%a8%e7%ba%bf%e5%af%b9%e6%af%94%e5%ae%9e%e6%88%98%e5%85%a8%e6%94%bb%e7%95%a5%e5%bc%80%e5%8f%91%e8%80%85%e5%bf%85%e5%a4%87\/","title":{"rendered":"2024\u5e74\u817e\u8bafPDF\u5728\u7ebf\u5bf9\u6bd4\u5b9e\u6218\u5168\u653b\u7565\u5f00\u53d1\u8005\u5fc5\u5907"},"content":{"rendered":"<section class=\"py-4\">\n<h2 class=\"mb-3\">PDF \u5bf9\u6bd4\u7684\u6838\u5fc3\u9700\u6c42<\/h2>\n<p>\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\uff0c<strong>PDF \u6587\u4ef6\u5bf9\u6bd4<\/strong>\u662f\u5ba1\u9605\u5408\u540c\u3001\u6280\u672f\u6587\u6863\u3001\u62a5\u8868\u7b49\u573a\u666f\u7684\u5fc5\u5907\u529f\u80fd\u3002<span class=\"badge bg-primary\">pdf\u5bf9\u6bd4<\/span>\u3001<span class=\"badge bg-secondary\">pdf\u5728\u7ebf\u5bf9\u6bd4<\/span>\u3001<span class=\"badge bg-success\">pdf\u6bd4\u8f83<\/span>\u7b49\u5173\u952e\u8bcd\u80cc\u540e\uff0c\u5b9e\u9645\u4e0a\u662f\u5bf9\u4e24\u4efd PDF \u5185\u5bb9\u3001\u5e03\u5c40\u3001\u6587\u5b57\u5dee\u5f02\u7684\u7cbe\u51c6\u5b9a\u4f4d\u3002<\/p>\n<div class=\"alert alert-info\" role=\"alert\">\n    \u76ee\u524d\u5e02\u9762\u4e0a\u5927\u591a\u6570\u5728\u7ebf\u5bf9\u6bd4\u5de5\u5177\uff08\u5305\u62ec\u672c\u6848\u4f8b\u7684 <a href=\"https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\" target=\"_blank\" class=\"link-primary\">Nimail PDF Compare<\/a>\uff09\u90fd\u91c7\u7528 <strong>\u9875\u9762\u6e32\u67d3\u540e\u50cf\u7d20\u6bd4\u5bf9<\/strong>\uff0c\u517c\u5bb9\u6027\u597d\u4f46\u5bf9\u5927\u6587\u4ef6\u4f1a\u7a0d\u6162\u3002\n  <\/div>\n<h3 class=\"mt-4 mb-2\">\u5b9e\u6218\u6848\u4f8b\uff1aNimail \u5728\u7ebf\u5bf9\u6bd4\u5de5\u5177<\/h3>\n<p>\u6253\u5f00 <a href=\"https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html\" target=\"_blank\" class=\"link-primary\">Nimail PDF \u5bf9\u6bd4\u9875\u9762<\/a>\uff0c\u53ef\u4ee5\u76f4\u63a5\u62d6\u62fd\u4e24\u4efd PDF\uff0c\u7cfb\u7edf\u4f1a\u5728\u51e0\u79d2\u949f\u5185\u751f\u6210\u5dee\u5f02\u9ad8\u4eae\u56fe\u3002<\/p>\n<ul class=\"list-group list-group-flush mb-3\">\n<li class=\"list-group-item\"><strong>\u652f\u6301\u6587\u4ef6\u5927\u5c0f\uff1a<\/strong>\u6700\u5927 50\u202fMB<\/li>\n<li class=\"list-group-item\"><strong>\u5bf9\u6bd4\u65b9\u5f0f\uff1a<\/strong>\u6587\u5b57\u5c42\u7ea7 + \u50cf\u7d20\u5c42\u7ea7<\/li>\n<li class=\"list-group-item\"><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u6587\u4ef6\u4e0a\u4f20\u540e 30\u202f\u5206\u949f\u81ea\u52a8\u5220\u9664<\/li>\n<\/ul>\n<div class=\"card mb-4\">\n<div class=\"card-header bg-light\">\n      \u529f\u80fd\u5bf9\u6bd4\u8868\n    <\/div>\n<div class=\"card-body p-0\">\n<table class=\"table table-sm table-hover mb-0\">\n<thead class=\"table-light\">\n<tr>\n<th>\u7279\u6027<\/th>\n<th>\u5728\u7ebf\uff08Nimail\uff09<\/th>\n<th>\u672c\u5730 Python \u811a\u672c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6587\u4ef6\u4e0a\u9650<\/td>\n<td>50\u202fMB<\/td>\n<td>\u65e0\u786c\u6027\u4e0a\u9650\uff08\u53d7\u673a\u5668\u5185\u5b58\u9650\u5236\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5bf9\u6bd4\u7cbe\u5ea6<\/td>\n<td>\u6587\u5b57+\u50cf\u7d20<\/td>\n<td>\u6587\u5b57\u5c42\u7ea7\uff08\u53ef\u81ea\u884c\u6269\u5c55\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5b89\u5168\u6027<\/td>\n<td>30\u202f\u5206\u949f\u81ea\u52a8\u6e05\u7406<\/td>\n<td>\u5b8c\u5168\u672c\u5730\uff0c\u6570\u636e\u4e0d\u79bb\u673a<\/td>\n<\/tr>\n<tr>\n<td>\u96c6\u6210\u6210\u672c<\/td>\n<td>\u5373\u70b9\u5373\u7528<\/td>\n<td>\u9700\u81ea\u884c\u90e8\u7f72\u73af\u5883<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/p><\/div>\n<h3 class=\"mt-4 mb-2\">Python \u5feb\u901f\u5b9e\u73b0 PDF \u6587\u6863\u5bf9\u6bd4<\/h3>\n<p>\u5982\u679c\u4f60\u66f4\u503e\u5411\u4e8e\u5728\u9879\u76ee\u4e2d\u81ea\u884c\u63a7\u5236\u5bf9\u6bd4\u903b\u8f91\uff0c\u4e0b\u9762\u7684\u793a\u4f8b\u4f7f\u7528 <code>PyPDF2<\/code> \u8bfb\u53d6\u4e24\u4efd PDF \u7684\u6587\u672c\u5e76\u8fdb\u884c\u9010\u9875\u6bd4\u8f83\uff0c\u9002\u7528\u4e8e <strong>pdf\u6587\u4ef6\u5bf9\u6bd4<\/strong>\u3001<strong>pdf\u6587\u6863\u5bf9\u6bd4<\/strong>\u7684\u573a\u666f\u3002<\/p>\n<pre class=\"bg-light p-3\"><code class=\"language-python\">import PyPDF2\n\ndef extract_text(path):\n    reader = PyPDF2.PdfReader(path)\n    text = []\n    for page in reader.pages:\n        text.append(page.extract_text() or \"\")\n    return text\n\ndef compare_pdfs(file1, file2):\n    t1 = extract_text(file1)\n    t2 = extract_text(file2)\n    for i, (p1, p2) in enumerate(zip(t1, t2), 1):\n        if p1 != p2:\n            print(f\"\u7b2c {i} \u9875\u5185\u5bb9\u4e0d\u540c\")\n            # \u8fd9\u91cc\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f7f\u7528 difflib \u505a\u7ec6\u7c92\u5ea6\u5bf9\u6bd4\n\nif __name__ == \"__main__\":\n    compare_pdfs('doc_a.pdf', 'doc_b.pdf')\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u53ea\u6f14\u793a\u4e86\u6587\u672c\u5c42\u9762\u7684\u5dee\u5f02\u68c0\u6d4b\uff0c\u82e5\u9700\u8981\u50cf\u7d20\u7ea7\u5bf9\u6bd4\uff0c\u53ef\u7ed3\u5408 <code>pdf2image<\/code> \u5c06\u9875\u9762\u8f6c\u4e3a\u56fe\u7247\u540e\u4f7f\u7528 <code>opencv<\/code> \u6216 <code>Pillow<\/code> \u8fdb\u884c\u50cf\u7d20\u5dee\u5206\u3002<\/p>\n<div class=\"alert alert-warning mt-4\" role=\"alert\">\n    <strong>\u6ce8\u610f\uff1a<\/strong>PDF \u6587\u672c\u62bd\u53d6\u53d7\u6587\u6863\u5185\u90e8\u7f16\u7801\u5f71\u54cd\uff0c\u67d0\u4e9b\u52a0\u5bc6\u6216\u626b\u63cf\u7248 PDF \u53ea\u80fd\u4f7f\u7528 OCR \u65b9\u6848\u624d\u80fd\u5f97\u5230\u53ef\u6bd4\u5bf9\u7684\u6587\u5b57\u3002\n  <\/div>\n<h4 class=\"mt-4\">\u5c0f\u6280\u5de7\uff1a\u7ed3\u5408 Badge \u9ad8\u4eae\u5dee\u5f02\u70b9<\/h4>\n<p>\u5728 WordPress \u4e2d\u7f16\u8f91\u6587\u7ae0\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 Bootstrap \u7684 <code>.badge<\/code> \u6765\u6807\u8bb0\u5173\u952e\u672f\u8bed\uff0c\u8ba9\u9605\u8bfb\u8005\u4e00\u773c\u6355\u6349\u5230\u6838\u5fc3\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<span class=\"badge bg-success\">pdf\u5728\u7ebf\u6bd4\u8f83<\/span>\u3001<span class=\"badge bg-danger\">pdf\u6bd4\u8f83<\/span>\u3002<\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>\u56f4\u7ed5 https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html \u5b9e\u4f8b\uff0c\u8be6\u7ec6\u4ecb\u7ecd PDF \u5bf9\u6bd4\u7684\u5b9e\u73b0\u601d\u8def\u3001\u5728\u7ebf\u5de5\u5177\u4f7f\u7528\u6280\u5de7\u4ee5\u53ca Python \u793a\u4f8b\u4ee3\u7801\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u4e0a\u624b PDF \u6587\u4ef6\u5bf9\u6bd4\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":[158,188,131],"class_list":["post-924","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>2024\u5e74\u817e\u8bafPDF\u5728\u7ebf\u5bf9\u6bd4\u5b9e\u6218\u5168\u653b\u7565\u5f00\u53d1\u8005\u5fc5\u5907 - nimail blog<\/title>\n<meta name=\"description\" content=\"\u56f4\u7ed5 https:\/\/www.nimail.cn\/dev-tool\/pdf-compare.html \u5b9e\u4f8b\uff0c\u8be6\u7ec6\u4ecb\u7ecd PDF \u5bf9\u6bd4\u7684\u5b9e\u73b0\u601d\u8def\u3001\u5728\u7ebf\u5de5\u5177\u4f7f\u7528\u6280\u5de7\u4ee5\u53ca Python \u793a\u4f8b\u4ee3\u7801\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u4e0a\u624b PDF 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