{"id":2390,"date":"2018-09-01T08:43:18","date_gmt":"2018-08-31T23:43:18","guid":{"rendered":"https:\/\/caddiary.com\/?p=2390"},"modified":"2020-06-20T16:05:51","modified_gmt":"2020-06-20T07:05:51","slug":"pdfium-viewer%e3%81%ab%e3%82%88%e3%82%8bpdf%e3%83%ac%e3%83%b3%e3%83%80%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%8c%e3%82%a4%e3%82%b1%e3%81%a6%e3%82%8b","status":"publish","type":"post","link":"https:\/\/caddiary.com\/?p=2390","title":{"rendered":"PDFium Viewer\u306b\u3088\u308bPDF\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u30a4\u30b1\u3066\u308b"},"content":{"rendered":"<p>PDF\u304c\u96fb\u5b50\u30da\u30fc\u30d1\u30fc\u306e\u7d76\u5bfe\u7684\u306a\u6a19\u6e96\u306b\u306a\u3063\u305f\u306a\u304b\u3001PDF\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3042\u3064\u304b\u3046\u306e\u304c\u3068\u3066\u3082\u7c21\u5358\u306b\u306a\u3063\u3066\u304d\u305f\u3002<!--more-->\u30d6\u30e9\u30a6\u30b6\u6226\u4e89\u306e\u52dd\u8005\u3067\u3042\u308bGoogle Chrome\u304cPDF\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306b\u63a1\u7528\u3057\u3066\u3044\u308bPDFium\uff08\u30d4\u30fc\u30c7\u30a3\u30fc\u30a8\u30d5\u30fb\u30a4\u30a2\u30e0\uff09\u3002\u30e9\u30a4\u30bb\u30f3\u30b9\u306f\u4fee\u6b63BSD\u30e9\u30a4\u30bb\u30f3\u30b9\u306a\u306e\u3067\u3001\u4f01\u696d\u304c\u5546\u7528\u5229\u7528\u3059\u308b\u4e0a\u3067\u306e\u30cf\u30fc\u30c9\u30eb\u306f\u4f4e\u3044\u3002\u3066\u3044\u3046\u304b\u3001\u30cf\u30fc\u30c9\u30eb\u306a\u3093\u3066\u306a\u3044\u3068\u8a00\u3063\u3066\u3082\u3044\u3044\u3002<\/p>\n<p>\u4eca\u65e5\u306f\u3001VisualStudio\u3067PDFium Viewer\u306a\u308b\u4fbf\u5229\u306a\u90e8\u54c1\u3092\u4f7f\u3063\u3066PDF\u3092Jpeg\u306b\u3059\u308b\u3068\u3044\u3046\u30c1\u30e7\u30fc\u7c21\u5358\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u53d6\u308a\u7d44\u3093\u3067\u307f\u308b\u3002\u8a00\u8a9e\u306fC#\u3060\u304b\u3089\u3001\u304a\u3044\u3089\u306b\u3068\u3063\u3066\u306f\u5c02\u9580\u5916\u3060\u304c\u3001\u4f55\u4e8b\u3082\u3084\u3063\u3066\u307f\u306a\u3044\u3068\u59cb\u307e\u3089\u306a\u3044\u3093\u3067\u3002\u3002<br \/>\n1\uff0e\u65b0\u3057\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067Windows\u30d5\u30a9\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210<br \/>\n2\uff0e\u30c4\u30fc\u30eb \u2192 NuGet\u30d1\u30c3\u30b1\u30fc\u30b8\u30de\u30cd\u30fc\u30b8\u30e3\u30fc \u2192 \u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306eNuGet\u30d1\u30c3\u30b1\u30fc\u30b8\u7ba1\u7406<br \/>\n3\uff0e\u53c2\u7167 \u3067PdfiumViewer \u3092\u691c\u7d22\u3057\u3066\u3001\u4ee5\u4e0b2\u3064\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<br \/>\n\u3000PdfiumViewer\u3001PdfiumViewer.Native.x86_64.v8-xfa<br \/>\n4\uff0e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3 \u2192 \u30d3\u30eb\u30c9\u3067\u300c32\u30d3\u30c3\u30c8\u3092\u512a\u5148\u300d \u306e\u30c1\u30a7\u30c3\u30af\u3092\u5916\u3059<br \/>\n5\uff0e\u30d5\u30a9\u30fc\u30e0\u306b\u30dc\u30bf\u30f3\u3092\u914d\u7f6e<br \/>\n6\uff0e\u30dc\u30bf\u30f3\u306e\u30af\u30ea\u30c3\u30af\u30a4\u30d9\u30f3\u30c8\u306b\u4ee5\u4e0b3\u884c\u3092\u633f\u5165\uff08\u30d5\u30a1\u30a4\u30eb\u540d\u306f\u9069\u5b9c\u5909\u66f4\uff09<br \/>\n\u3000PdfDocument pdfDoc = PdfDocument.Load(&#8220;C:\\\\work\\\\test.pdf&#8221;);<br \/>\n\u3000Image img = pdfDoc.Render(0, 300, 300, false);<br \/>\n\u3000img.Save(&#8220;C:\\\\work\\\\test.jpg&#8221;, ImageFormat.Jpeg);<br \/>\n7\uff0e\u53c2\u7167\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u4ee5\u4e0b2\u884c\u3092\u8ffd\u52a0<br \/>\n\u3000using PdfiumViewer;<br \/>\n\u3000using System.Drawing.Imaging;<br \/>\n8\uff0e\u30d3\u30eb\u30c9\u3057\u3066\u5b9f\u884c<br \/>\n<a href=\"https:\/\/caddiary.com\/wp-content\/uploads\/2018\/09\/csharpsample.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/caddiary.com\/wp-content\/uploads\/2018\/09\/csharpsample.png\" alt=\"\" width=\"279\" height=\"113\" class=\"alignnone size-full wp-image-2392\" \/><\/a><\/p>\n<p>test.pdf\u306e1\u30da\u30fc\u30b8\u76ee\u3092test.jpg\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u3067\u3057\u3087\u3002\u306a\u3093\u3068\u307e\u3041\u7c21\u5358\u306a\u3053\u3068\u304b\u3002Render\u30e1\u30bd\u30c3\u30c9\u5f15\u6570\u306e\u610f\u5473\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3002<br \/>\nPdfDocument.Reader(int page, float dpiX, float dpiY, bool forPringing);<br \/>\nPDF\u306f\u8907\u6570\u30da\u30fc\u30b8\u3042\u308b\u308f\u3051\u3060\u304b\u3089\u3001\u5168\u30da\u30fc\u30b8\u5206\u306e\u30e9\u30b9\u30bf\u30e9\u30a4\u30ba\u3092\u3057\u3066\u3042\u3052\u307e\u3057\u3087\u3002<\/p>\n<pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\r\nusing PdfiumViewer;\r\nusing System;\r\nusing System.Collections.Generic;\r\nusing System.ComponentModel;\r\nusing System.Data;\r\nusing System.Drawing;\r\nusing System.Drawing.Imaging;\r\nusing System.Linq;\r\nusing System.Text;\r\nusing System.Threading.Tasks;\r\nusing System.Windows.Forms;\r\n\r\nnamespace PDFiumTest\r\n{\r\n    public partial class Form1 : Form\r\n    {\r\n        public Form1()\r\n        {\r\n            InitializeComponent();\r\n        }\r\n        private void button1_Click(object sender, EventArgs e)\r\n        {\r\n            PdfDocument pdfDoc = PdfDocument.Load(&quot;D:\\\\work\\\\test.pdf&quot;);\r\n            for (int i = 0; i &lt; pdfDoc.PageCount; i++)\r\n            {\r\n                Image img = pdfDoc.Render(i, 300, 300, false);\r\n                string output = string.Format(&quot;D:\\\\work\\\\test{0}.jpg&quot;, i+1);\r\n                img.Save(output, ImageFormat.Jpeg);\r\n            }\r\n        }\r\n    }\r\n}\r\n<\/pre>\n<p>\u4eca\u56de\u306fPDFium Viewer\u3068\u3044\u3046C#\u306e\u90e8\u54c1\u3092\u4f7f\u3063\u3066\u307f\u305f\u308f\u3051\u3060\u304c\u3001PDFium\u672c\u4f53\u306fC++\u306e\u90e8\u54c1\u3089\u3057\u3044\u3002\u4e16\u9593\u7684\u306b\u306f\u30c9\u30c3\u30c8net\u305f\u308bC#\u306e\u307b\u3046\u304c\u4f7f\u3044\u3084\u3059\u3044\u3093\u3060\u308d\u3046\u3051\u3069\u3001\u304a\u3044\u3089\u3068\u3057\u3066\u306f\u4f7f\u3044\u6163\u308c\u305fC++\u3067\u7d44\u307f\u305f\u3044\u6c17\u6301\u3061\u304c\u5f37\u3044\u3002\u3044\u305a\u308c\u305d\u3044\u3064\u3092\u63a2\u3057\u51fa\u3057\u3066\u3001\u3044\u3058\u3063\u3066\u307f\u3088\u3046\u304b\u306a\u3068\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PDF\u304c\u96fb\u5b50\u30da\u30fc\u30d1\u30fc\u306e\u7d76\u5bfe\u7684\u306a\u6a19\u6e96\u306b\u306a\u3063\u305f\u306a\u304b\u3001PDF\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3042\u3064\u304b\u3046\u306e\u304c\u3068\u3066\u3082\u7c21\u5358\u306b\u306a\u3063\u3066\u304d\u305f\u3002<\/p>\n","protected":false},"author":1,"featured_media":2391,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[2],"tags":[],"class_list":["post-2390","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/caddiary.com\/wp-content\/uploads\/2018\/09\/pdfiumviewer.jpg","jetpack_shortlink":"https:\/\/wp.me\/p8RkjM-Cy","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/posts\/2390","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/caddiary.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2390"}],"version-history":[{"count":2,"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/posts\/2390\/revisions"}],"predecessor-version":[{"id":4308,"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/posts\/2390\/revisions\/4308"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/caddiary.com\/index.php?rest_route=\/wp\/v2\/media\/2391"}],"wp:attachment":[{"href":"https:\/\/caddiary.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2390"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/caddiary.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2390"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/caddiary.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}