{"id":39359,"date":"2023-07-22T10:23:47","date_gmt":"2023-04-11T15:21:48","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8-angular-%e5%92%8c-pdf-js-%e6%9d%a5%e6%98%be%e7%a4%ba-pdf-%e7%9a%84%e7%ae%80%e5%8d%95%e7%a4%ba%e4%be%8b%e7%a8%8b%e5%ba%8f%e3%80%82\/"},"modified":"2024-04-30T14:49:04","modified_gmt":"2024-04-30T06:49:04","slug":"%e4%bd%bf%e7%94%a8-angular-%e5%92%8c-pdf-js-%e6%9d%a5%e6%98%be%e7%a4%ba-pdf-%e7%9a%84%e7%ae%80%e5%8d%95%e7%a4%ba%e4%be%8b%e7%a8%8b%e5%ba%8f%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8-angular-%e5%92%8c-pdf-js-%e6%9d%a5%e6%98%be%e7%a4%ba-pdf-%e7%9a%84%e7%ae%80%e5%8d%95%e7%a4%ba%e4%be%8b%e7%a8%8b%e5%ba%8f%e3%80%82\/","title":{"rendered":"\u4f7f\u7528 [Angular] \u548c PDF.JS \u6765\u663e\u793a PDF \u7684\u7b80\u5355\u793a\u4f8b\u7a0b\u5e8f"},"content":{"rendered":"<p>2021\u5e746\u670827\u65e5\u66f4\u65b0\uff1a\u6211\u9010\u6e10\u5730\u66f4\u65b0\u4e86\u3002\u94fe\u63a5\uff1ahttps:\/\/github.com\/sengokyu\/ex.angular-pdfjs<\/p>\n<h1>\u8fd9\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u8fd9\u662f\u4e00\u4e2a\u5728 Angular \u7ec4\u4ef6\u4e2d\u663e\u793a PDF \u6587\u4ef6\u7b2c\u4e00\u9875\u7684\u793a\u4f8b\u3002\u6211\u4eec\u4f7f\u7528\u4e86 PDF.JS\u3002<\/p>\n<h1>\u73af\u5883<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Angular 12.0.0 RC2<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">pdfjs-dist 2.7.570<\/ul>\n<p>\u56e0\u4e3aPDF.JS\u4f7f\u7528\u4e86\uff0c\u6240\u4ee5\u4e3a\u4e86\u52a0\u8f7d\u5b83\uff0c\u6211\u9009\u62e9\u4e86Angular 12\u3002<\/p>\n<h1>\u5b89\u88c5<\/h1>\n<pre class=\"post-pre\"><code><span class=\"go\">npm i pdfjs-dist --save-dev\r\n<\/span><\/code><\/pre>\n<h1>\u7f16\u8f91angular.json\u6587\u4ef6<\/h1>\n<p>\u4e3a\u4e86\u5355\u72ec\u52a0\u8f7dpdf.js\u6587\u4ef6\uff0c\u4f60\u9700\u8981\u7f16\u8f91angular.json\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nl\">\"scripts\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n   <span class=\"s2\">\"node_modules\/pdfjs-dist\/build\/pdf.js\"<\/span><span class=\"p\">,<\/span>\r\n   <span class=\"s2\">\"node_modules\/pdfjs-dist\/build\/pdf.worker.js\"<\/span>\r\n<span class=\"p\">]<\/span><span class=\"err\">,<\/span>\r\n<\/code><\/pre>\n<h1>\u7f16\u7a0b<\/h1>\n<h2>\u8868\u8fbe\u5904\u7406\u90e8\u5206<\/h2>\n<p>\u663e\u793aPDF\u7684\u5904\u7406\u4e0eAngular\u65e0\u5173\uff0c\u662f\u4ecePDF.JS\u7684\u793a\u4f8b\u4e2d\u83b7\u53d6\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"k\">async<\/span> <span class=\"nx\">showPdfPage<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"nx\">canvas<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HTMLCanvasElement<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">url<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">scale<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">pageNumber<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span>\r\n  <span class=\"p\">):<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">void<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">pdf<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">getDocument<\/span><span class=\"p\">(<\/span><span class=\"nx\">url<\/span><span class=\"p\">).<\/span><span class=\"nx\">promise<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">page<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nx\">pdf<\/span><span class=\"p\">.<\/span><span class=\"nx\">getPage<\/span><span class=\"p\">(<\/span><span class=\"nx\">pageNumber<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">viewport<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">page<\/span><span class=\"p\">.<\/span><span class=\"nx\">getViewport<\/span><span class=\"p\">({<\/span> <span class=\"nx\">scale<\/span> <span class=\"p\">});<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">canvasContext<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">canvas<\/span><span class=\"p\">.<\/span><span class=\"nx\">getContext<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">2d<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n    <span class=\"nx\">canvas<\/span><span class=\"p\">.<\/span><span class=\"nx\">height<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">viewport<\/span><span class=\"p\">.<\/span><span class=\"nx\">height<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nx\">canvas<\/span><span class=\"p\">.<\/span><span class=\"nx\">width<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">viewport<\/span><span class=\"p\">.<\/span><span class=\"nx\">width<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"k\">await<\/span> <span class=\"nx\">page<\/span><span class=\"p\">.<\/span><span class=\"nx\">render<\/span><span class=\"p\">({<\/span> <span class=\"nx\">canvasContext<\/span><span class=\"p\">,<\/span> <span class=\"nx\">viewport<\/span> <span class=\"p\">}).<\/span><span class=\"nx\">promise<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u7ec4\u4ef6\u6a21\u677f<\/h2>\n<p>\u6a21\u677f\u53ea\u9700\u653e\u7f6ecanvas\u5143\u7d20\uff0c\u5e76\u4e3a\u5176\u5206\u914dID\u4ee5\u4f9b\u5f15\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;canvas<\/span> <span class=\"na\">#pdfCanvas<\/span><span class=\"nt\">&gt;&lt;\/canvas&gt;<\/span>\r\n<\/code><\/pre>\n<h2>\u7ec4\u4ef6<\/h2>\n<p>\u6211\u6b63\u5728\u4f7f\u7528@ViewChild\u5f15\u7528\u653e\u5728\u6a21\u677f\u4e2d\u7684canvas\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">AppComponent<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">AfterViewInit<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"p\">@<\/span><span class=\"nd\">ViewChild<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">pdfCanvas<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"nx\">pdfCanvas<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"nl\">nativeElement<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HTMLCanvasElement<\/span> <span class=\"p\">};<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u5728AfterViewInit\u4e2d\u8c03\u7528\u4e86\u5148\u524d\u7f16\u5199\u7684\u663e\u793a\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"k\">async<\/span> <span class=\"nx\">ngAfterViewInit<\/span><span class=\"p\">():<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">void<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">showPdfPage<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">pdfCanvas<\/span><span class=\"p\">.<\/span><span class=\"nx\">nativeElement<\/span><span class=\"p\">,<\/span> <span class=\"nx\">PDF_FILE_NAME<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u5b8c\u6210<\/h1>\n<p>\u6211\u53ef\u4ee5\u505a\u5230\u8fd9\u4e2a\u3002<br \/>\n\u6211\u6b63\u5728\u663e\u793a\u6b64\u6587\u4ef6 https:\/\/raw.githubusercontent.com\/sengokyu\/ex.angular-pdfjs\/main\/src\/assets\/RoShinoStdAdobeFonts.pdf\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a1d37434c4406c7c9ba\/25-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u6574\u4e2a\u7a0b\u5e8f\u5df2\u7ecf\u653e\u5728GitHub\u4e0a\u3002<br \/>\nhttps:\/\/github.com\/sengokyu\/ex.angular-pdfjs<\/p>\n<h1>\u5df2\u77e5\u95ee\u9898 (Y\u01d0 zh\u012b<\/h1>\n<p>\u6d4f\u89c8\u5668\u63a7\u5236\u53f0\u51fa\u73b0\u4e86\u8fd9\u6837\u7684\u8b66\u544a\u3002\u8be5\u600e\u4e48\u529e\uff1f<\/p>\n<p>\u8b66\u544a\uff1a\u5b57\u4f53\u52a0\u8f7d\u65f6\u51fa\u9519\uff1a\u5fc5\u987b\u6307\u5b9aCMap\u7684\u201cbaseUrl\u201d\u53c2\u6570\uff0c\u8bf7\u786e\u4fdd\u63d0\u4f9b\u4e86\u201ccMapUrl\u201d\u548c\u201ccMapPacked\u201d API\u53c2\u6570\u3002pdf.js:1211<\/p>\n<h1>\u94fe\u63a5<\/h1>\n<ul class=\"post-ul\">TypeScript\u3067pdfjs\u3092\u4f7f\u3063\u3066PDF\u306e\u5148\u982d\u30da\u30fc\u30b8\u3092\u8868\u793a\u3057\u3088\u3046\u3068\u8a66\u884c\u932f\u8aa4\u3057\u305f\u8a71<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>2021\u5e746\u670827\u65e5\u66f4\u65b0\uff1a\u6211\u9010\u6e10\u5730\u66f4\u65b0\u4e86\u3002\u94fe\u63a5\uff1ahttps:\/\/github.com\/sengokyu\/ex. [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39359","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528 [Angular] \u548c PDF.JS \u6765\u663e\u793a PDF \u7684\u7b80\u5355\u793a\u4f8b\u7a0b\u5e8f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528-angular-\u548c-pdf-js-\u6765\u663e\u793a-pdf-\u7684\u7b80\u5355\u793a\u4f8b\u7a0b\u5e8f\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528 [Angular] \u548c PDF.JS \u6765\u663e\u793a PDF \u7684\u7b80\u5355\u793a\u4f8b\u7a0b\u5e8f\" \/>\n<meta property=\"og:description\" content=\"2021\u5e746\u670827\u65e5\u66f4\u65b0\uff1a\u6211\u9010\u6e10\u5730\u66f4\u65b0\u4e86\u3002\u94fe\u63a5\uff1ahttps:\/\/github.com\/sengokyu\/ex. 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