{"id":23990,"date":"2019-09-02T07:32:40","date_gmt":"2019-09-02T14:32:40","guid":{"rendered":"https:\/\/kinsta.com\/?p=49680"},"modified":"2026-02-11T18:11:35","modified_gmt":"2026-02-11T09:11:35","slug":"jpg-vs-jpeg","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/jpg-vs-jpeg\/","title":{"rendered":"\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0fJPG\u3068JPEG\u306e\u9055\u3044\uff08\uff0bJPEG 2000\uff09"},"content":{"rendered":"<p>\u30b5\u30a4\u30c8\u6240\u6709\u8005\u306f\u3001\u5e38\u306b\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3092\u6271\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u753b\u50cf\u306b\u7cbe\u901a\u3057\u3066\u3044\u306a\u304f\u3066\u3082\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/free-images-for-wordpress\/\">\u753b\u50cf\u3092\u7de8\u96c6\u3057\u3066\u30b5\u30a4\u30c8\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9<\/a>\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304c\u3001JPEG\u3001\u305d\u3057\u3066JPG\u306e\u3088\u3046\u306a\u4e00\u822c\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306b\u3064\u3044\u3066\u306f\u7406\u89e3\u3057\u3066\u304a\u304d\u305f\u3044\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306fJPG\u3068JPEG\u306e\u9055\u3044\u306b\u8a73\u3057\u304f\u89e6\u308c\u3001\u6700\u9ad8\u306e\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u5b9f\u73fe\u306e\u305f\u3081\u306b\u6700\u9069\u5316\u3057\u305f\u753b\u50cf\u3092\u30b5\u30a4\u30c8\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u30b3\u30c4\u3092\u3054\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/webp\/\">\u6700\u65b0\u306e.webp\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u304a\u63a2\u3057\u306e\u65b9\u306f\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2 id=\"jpeg\">JPEG\u3068\u306f<\/h2>\n<p>\u753b\u50cf\u3092\u6271\u3046\u30b5\u30a4\u30c8\u6240\u6709\u8005\u306a\u3089\u3001\u7de8\u96c6\u3084\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u306e\u969b\u306b\u300cJPEG\u300d\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u4e00\u5ea6\u306f\u76ee\u306b\u3057\u305f\u3053\u3068\u304c\u3042\u308b\u306f\u305a\u3002<\/p>\n<p><span style=\"font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;font-size: 1.125rem\">JPEG\u3068\u3044\u3046\u7528\u8a9e\u306f\u3001\u5b9f\u306f3\u3064\u306e\u7570\u306a\u308b\u3082\u306e\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/span><\/p>\n<h3>1. \u975e\u53ef\u9006\u5727\u7e2e\u65b9\u5f0f<\/h3>\n<p>\u30b5\u30a4\u30c8\u306b\u753b\u50cf\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u969b\u306b\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/learn\/speed-up-wordpress\/\">\u30b5\u30a4\u30c8\u306e\u901f\u5ea6<\/a>\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044\u3088\u3046\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u6d6a\u8cbb\u3057\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3067\u306e\u8aad\u307f\u8fbc\u307f\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u3088\u3046\u306a\u5927\u304d\u306a\u753b\u50cf\u3092\u4f7f\u7528\u3057\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u7e2e\u5c0f\u3057\u3001\u512a\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3068<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-lazy-load\/\">\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3092\u7dad\u6301<\/a>\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4f55\u3089\u304b\u306e\u65b9\u6cd5\u3067<a href=\"https:\/\/kinsta.com\/jp\/blog\/optimize-images-for-web\/\">\u753b\u50cf\u3092\u6700\u9069\u5316<\/a>\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u3093\u306a\u753b\u50cf\u6700\u9069\u5316\u306b\u8ca2\u732e\u3057\u3066\u304f\u308c\u308b\u306e\u304cJPEG\u3067\u3059\u3002JPEG\u306f<a href=\"https:\/\/kinsta.com\/blog\/lossy-compression\/\">\u975e\u53ef\u9006\u5727\u7e2e\u65b9\u5f0f<\/a>\u3067\u3001\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u3092\u3067\u304d\u308b\u3060\u3051\u5c0f\u3055\u304f\u3057\u3001\u5fc5\u8981\u6642\u306b\u3067\u304d\u308b\u3060\u3051\u7d20\u65e9\u304f\u8aad\u307f\u8fbc\u3080\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u975e\u53ef\u9006\u5727\u7e2e\u306b\u95a2\u3059\u308b\u6ce8\u610f\u4e8b\u9805\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3002<\/p>\n<ul>\n<li>\u753b\u50cf\u304b\u3089\u4e0d\u8981\u306a\uff08\u5197\u9577\u306a\uff09\u60c5\u5831\u3092\u53d6\u308a\u9664\u304f\u3053\u3068\u3067\u3001\u5727\u7e2e\u3055\u308c\u308b\u753b\u50cf\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u6052\u4e45\u7684\u306b\u5c0f\u3055\u304f\u306a\u308b\u3002<\/li>\n<li>\u753b\u8cea\u306f\u843d\u3061\u308b\u304c\u3001\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u304c\u6c17\u3065\u304b\u306a\u3044\u7a0b\u5ea6\u3002<\/li>\n<li>\u5727\u7e2e\u306e\u904e\u7a0b\u3067\u3001\u5404\u30d4\u30af\u30bb\u30eb\u304c\u305d\u308c\u3092\u56f2\u3080\u30d4\u30af\u30bb\u30eb\u30682:1\u304b\u3089100:1\u307e\u3067\u306e\u6bd4\u7387\u3067\u6bd4\u8f03\u3055\u308c\u308b\uff08\u5143\u753b\u50cf\u3068\u540c\u3058\u30d4\u30af\u30bb\u30eb\u306f\u5197\u9577\u3068\u5224\u65ad\u3055\u308c\u524a\u9664\u3055\u308c\u308b\uff09\u3002<\/li>\n<li>JPEG\u306e\u975e\u53ef\u9006\u5727\u7e2e\u306f\u901a\u5e38\u3001\u5199\u771f\u3084\u8907\u96d1\u306a\u9759\u6b62\u753b\u50cf\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002<\/li>\n<li>\u975e\u53ef\u9006\u5727\u7e2e\u3067\u753b\u50cf\u3092\u5727\u7e2e\u3059\u308b\u5834\u5408\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3068\u753b\u8cea\u306e\u9069\u5207\u306a\u30d0\u30e9\u30f3\u30b9\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\uff08\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3044\uff1d\u753b\u8cea\u304c\u60aa\u3044\uff09\u3002<\/li>\n<li>\u753b\u50cf\u3092\u7de8\u96c6\u3057\u3066\u4fdd\u5b58\u3059\u308c\u3070\u3059\u308b\u307b\u3069\u3001\u753b\u8cea\u306f\u4f4e\u4e0b\u3059\u308b\u3002<\/li>\n<\/ul>\n<p>\u975e\u53ef\u9006\u5727\u7e2e\u3092\u4f7f\u3063\u305f\u753b\u50cf\u7de8\u96c6\u306b\u6163\u308c\u3066\u3044\u308b\u65b9\u5411\u3051\u3067\u3059\u304c\u3001RAW\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306e\u753b\u50cf\u3092\u7de8\u96c6\u3057\u3001\u4e00\u5ea6\u3060\u3051\u4fdd\u5b58\u3059\u308b\u3053\u3068\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u7e2e\u5c0f\u3057\u306a\u304c\u3089\u753b\u8cea\u3092\u4fdd\u3064\u3068\u3044\u3046\u6280\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30a4\u30c8\u306e\u753b\u50cf\u306bJPEG\u975e\u53ef\u9006\u5727\u7e2e\u3092\u4f7f\u7528\u3057\u305f\u304f\u306a\u3044\u5834\u5408\u306b\u306f\u3001<a href=\"https:\/\/kinsta.com\/blog\/lossy-compression\/#lossless-compression\">\u53ef\u9006\u5727\u7e2e\u65b9\u5f0f<\/a>\u3092\u4f7f\u7528\u3059\u308b\u624b\u3082\u3002<\/p>\n<p>\u53ef\u9006\u5727\u7e2e\uff08\u30ed\u30b9\u30ec\u30b9\u5727\u7e2e\u3068\u3082\uff09\u306f\u3001\u753b\u50cf\u3092\u307e\u3063\u305f\u304f\u5225\u306e\u5f62\u5f0f\uff08\u901a\u5e38\u306fPNG\uff09\u3067\u4fdd\u5b58\u3057\u307e\u3059\u3002\u60c5\u5831\u304c\u524a\u9664\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u753b\u8cea\u304c\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u753b\u50cf\u306e\u6700\u7d42\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u5e38\u306b\u975e\u53ef\u9006\u5727\u7e2e\u65b9\u5f0f\u3088\u308a\u3082\u5927\u304d\u304f\u306a\u308a\u3001\u305d\u306e\u7d50\u679c\u3001\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u304c\u4f4e\u4e0b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>2. Joint Photographic Experts Group\uff08JPEG\uff09<\/h3>\n<p>JPEG\u3068\u306f\u3001Joint Photographic Experts Group\u306e\u7565\u3067\u3042\u308a\u3001\u3053\u308c\u306fJPEG\u898f\u683c\u306e\u4f5c\u6210\u306b\u8ca2\u732e\u3057\u305f\u5c0f\u59d4\u54e1\u4f1a\u306e\u540d\u524d\u3067\u3059\u3002JPEG\u306f\u3001ISO\u3068\u547c\u3070\u308c\u308b\u5e83\u7bc4\u306a\u30b0\u30eb\u30fc\u30d7\u306e\u4e0b\u3001\u4ed6\u306e\u9759\u6b62\u753b\u7b26\u53f7\u5316\u898f\u683c\u3068\u3068\u3082\u306b\u4f5c\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306eJPEG\u6a19\u6e96\u306f\u3001ISO\uff08\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\uff09\u306b\u3088\u3063\u30661992\u5e74\u306b\u767a\u884c\u3055\u308c\u307e\u3057\u305f\u3002<a href=\"https:\/\/www.iso.org\/standards.html\" target=\"_blank\" rel=\"noopener noreferrer\">ISO<\/a>\u306f\u3001\u300c\u2026\u6750\u6599\u3001\u88fd\u54c1\u3001\u30d7\u30ed\u30bb\u30b9\u3001\u304a\u3088\u3073\u30b5\u30fc\u30d3\u30b9\u304c\u305d\u306e\u76ee\u7684\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306b\u4e00\u8cab\u3057\u3066\u4f7f\u7528\u3067\u304d\u308b\u8981\u4ef6\u3001\u4ed5\u69d8\u3001\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3001\u307e\u305f\u306f\u7279\u6027\u3092\u63d0\u4f9b\u3059\u308b\uff08\u82f1\u8a9e\u539f\u6587\u306e\u65e5\u672c\u8a9e\u8a33\uff09\u300d\u6587\u66f8\u3092\u4f5c\u6210\u3059\u308b\u8cac\u4efb\u3092\u8ca0\u3044\u307e\u3059\u3002<\/p>\n<p>ISO\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u6d88\u8cbb\u8005\u306b\u6700\u9ad8\u54c1\u8cea\u306e\u88fd\u54c1\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u3092\u542b\u3080\u591a\u304f\u306e\u3082\u306e\u306e\u898f\u683c\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_49813\" aria-describedby=\"caption-attachment-49813\" style=\"width: 900px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-49813 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/jpg vs jpeg: ISO logo.png\" alt=\"ISO\u306e\u30ed\u30b4\uff08\u753b\u50cf\u51fa\u5178: Wikimedia Commons\uff09\" width=\"900\" height=\"687\"><figcaption id=\"caption-attachment-49813\" class=\"wp-caption-text\">ISO\u306e\u30ed\u30b4\uff08\u753b\u50cf\u51fa\u5178: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:ISO_Logo_(Red_square).svg\" target=\"_blank\" rel=\"noopener noreferrer\">Wikimedia Commons<\/a>\uff09<\/figcaption><\/figure>\n<p>164\u30ab\u30f6\u56fd\u4ee5\u4e0a\u306e\u30e1\u30f3\u30d0\u30fc\u304c\u53c2\u52a0\u3059\u308b\u4efb\u610f\u56e3\u4f53\u3067\u3042\u308a\u3001\u4e16\u754c\u6700\u5927\u306e\u898f\u683c\u7b56\u5b9a\u56e3\u4f53\u3067\u3059\u3002<\/p>\n<h3>3. JPEG\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f<\/h3>\n<p>JPEG\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u540d\u3084\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u306e\u4fdd\u5b58\u30fb\u4fdd\u5b58\u65b9\u6cd5\u3067\u3082\u3042\u308a\u307e\u3059\u3002JPEG\u306f\u3001\u753b\u50cf\u3092\u7de8\u96c6\u3057\u305f\u5f8c\u306b\u4fdd\u5b58\u3059\u308b\u969b\u306e\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306e\u9078\u629e\u80a2\u306e1\u3064\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3068\u3057\u3066\u306eJPEG\u304c\u6700\u3082\u77e5\u3089\u308c\u3066\u3044\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<figure id=\"attachment_52297\" aria-describedby=\"caption-attachment-52297\" style=\"width: 1250px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52297 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/jpeg file format.png\" alt=\"JPEG\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\" width=\"1250\" height=\"829\"><figcaption id=\"caption-attachment-52297\" class=\"wp-caption-text\">JPEG\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f<\/figcaption><\/figure>\n<p>.jpeg\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306e\u7279\u5fb4\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u30c7\u30b8\u30bf\u30eb\u30ab\u30e1\u30e9\u3084\u305d\u306e\u4ed6\u306e\u753b\u50cf\u30ad\u30e3\u30d7\u30c1\u30e3\u30c7\u30d0\u30a4\u30b9\u3067\u4f7f\u7528\u3055\u308c\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3002<\/li>\n<li>1,677\u4e077,216\u8272\u306b\u5bfe\u5fdc\u3057\u3001RGB\u30ab\u30e9\u30fc\u30e2\u30c7\u30eb\u306e\u54048\u30d3\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u751f\u6210\u3055\u308c\u308b\u3002<\/li>\n<li>\u4e00\u5ea6\u306b16,00\u4e07\u8272\u4ee5\u4e0a\u3092\u8868\u793a\u3067\u304d\u308b\u305f\u3081\u3001<a href=\"https:\/\/kinsta.com\/blog\/website-color-schemes\/\">\u914d\u8272<\/a>\u3084\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u306e\u89e3\u50cf\u5ea6\u304c\u307b\u307c\u5b8c\u74a7\u3002<\/li>\n<li>\u6700\u5927\u30b5\u30a4\u30ba\u306f65,535\u00d765,535\u30d4\u30af\u30bb\u30eb\u3002<\/li>\n<li>\u975e\u53ef\u9006\u5727\u7e2e\u306b\u3088\u308a\u4fdd\u5b58\u6642\u306e\u753b\u50cf\u30b5\u30a4\u30ba\u306f\u7d0450\uff5e75\uff05\u7e2e\u5c0f\u3055\u308c\u308b\u3002<\/li>\n<\/ul>\n<p>\u306a\u304a\u3001.jpeg\u306f\u3001\u500b\u3005\u306e\u30d4\u30af\u30bb\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u8868\u793a\u3059\u308b.png\u3068\u3057\u3066\u4fdd\u5b58\u3057\u305f\u5834\u5408\u3088\u308a\u3082\u8272\u304c\u6df7\u3056\u308a\u5408\u3046\u305f\u3081\u3001\u30b7\u30e3\u30fc\u30d7\u306a\u30a8\u30c3\u30b8\u3092\u6301\u3064\u753b\u50cf\u306b\u306f\u4e0d\u5411\u304d\u3067\u3059\u3002<\/p>\n\n<div  class=\"featured-snippet\" id=\"featuredSnippet\">\n    <div class=\"featured-snippet__content\">\n        <h2>JPG\u3068JPEG\u306e\u9055\u3044<\/h2>\n        <div><p>JPG\u3068JPEG\u306e\u9055\u3044\u306f\u3001\u5b9f\u306f\u6587\u5b57\u6570\u3060\u3051\uff08JPG\u306f3\u6587\u5b57\u3001JPEG\u306f4\u6587\u5b57\uff09\u3002\u300cJPG\u300d\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u6700\u5927\u6587\u5b57\u6570\u304c3\u6587\u5b57\u3060\u3063\u305f\u3001Windows\u306e\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\uff08MS-DOS 8.3\u3068FAT-16\uff09\u306e\u305f\u3081\u306b\u4f5c\u6210\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n    <\/div>\n    <div class=\"featured-snippet__footer\">\n        <div class=\"arrow-down\"><\/div>\n        <div class=\"featured-snippet__footer--content row nocol middle-xs between-xs reverse\">\n            <div style=\"margin-left: auto; position: relative; top: -1px\" class=\"row nocol middle-xs\">\n                <div class=\"color--mediumGray\" style=\"font-size: 14px; vertical-align: middle;\">\n                    <svg  class=\"icon icon--logo display--block\" aria-hidden=\"true\" focusable=\"false\"><use xlink:href=\"https:\/\/kinsta.com\/jp\/wp-content\/themes\/kinsta\/dist\/sprite.svg?v=e8af2143e3b8bceb5561b327e81ec085#logo\" \/><\/svg>                <\/div>\n                <div class=\"text--bold color--mediumGray\" style=\"padding-left: 3px;\">Support<\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<p>JPEG\u3068JPG\u306e\u9055\u3044\u306f\u306a\u3093\u3068\u305f\u3063\u305f\u3053\u308c\u3060\u3051\u3002<\/p>\n<p>\u5f53\u6642\u3001Mac\u3084Linux\u306e\u3088\u3046\u306aUNIX\u7cfb\u306eOS\u306b\u306f\u3053\u306e\u3088\u3046\u306a\u5236\u9650\u306f\u306a\u304f\u3001JPEG\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u305f\u753b\u50cf\u306b\u306f\u305d\u306e\u307e\u307e.jpeg\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\u3002\u3068\u3053\u308d\u304c\u3001Windows\u3067\u540c\u3058\u7a2e\u985e\u306e\u753b\u50cf\u3092\u4fdd\u5b58\u3059\u308b\u5834\u5408\u3001\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u30923\u6587\u5b57\u306b\u53ce\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001.jpg\u306b\u77ed\u7e2e\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<figure id=\"attachment_52298\" aria-describedby=\"caption-attachment-52298\" style=\"width: 954px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52298 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/windows-file-extensions-2.png\" alt=\"Windows\u306e\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\" width=\"954\" height=\"181\"><figcaption id=\"caption-attachment-52298\" class=\"wp-caption-text\">Windows\u306e\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50<\/figcaption><\/figure>\n<p>\u73fe\u5728\u306eWindows\u3067\u306f\u3001.jpeg\u306e\u3088\u3046\u306a4\u6587\u5b57\u306e\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u591a\u304f\u306e\u4eba\u304c\u9577\u5e74Windows\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001\u753b\u50cf\u3092JPG\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b\u3053\u3068\u306b\u6163\u308c\u3066\u304a\u308a\u3001\u73fe\u5728\u3082JPG\u3092\u4f7f\u7528\u3059\u308b\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u305f\u3081\u3001Adobe Photoshop\u3084GIMP\u306a\u3069\u306e\u5199\u771f\u7de8\u96c6\u30bd\u30d5\u30c8\u306f\u3001\u6df7\u4e71\u3092\u907f\u3051\u308b\u305f\u3081\u3001Windows\u3067\u3082Mac\u3067\u3082\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3059\u3079\u3066\u306eJPEG\u753b\u50cf\u3092.jpg\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3067\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<h2 id=\"similarities\">JPG\u3068JPEG\u306e\u7279\u5fb4<\/h2>\n<p>.jpeg\u30d5\u30a1\u30a4\u30eb\u3068.jpg\u30d5\u30a1\u30a4\u30eb\u304c\u307e\u3063\u305f\u304f\u540c\u3058\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u306f\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u70b9\u3092\u4eca\u5f8c\u3082\u8a18\u61b6\u3057\u3066\u304a\u304f\u305f\u3081\u3001JPEG\u753b\u50cf\u3068JPG\u753b\u50cf\u306e\u7279\u5fb4\u3092\u3082\u3046\u5c11\u3057\u6398\u308a\u4e0b\u3052\u3066\u307f\u307e\u3059\u3002<\/p>\n<div><\/div><kinsta-auto-toc list-style=\"decimal\" selector=\"h3\" count-number=\"4\" sub-toc=\"true\"><\/kinsta-auto-toc>\n<h3>1. \uff08\u30d9\u30af\u30bf\u30fc\u753b\u50cf\u3067\u306f\u306a\u304f\uff09\u30e9\u30b9\u30bf\u30fc\u753b\u50cf<\/h3>\n<p>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u753b\u50cf\u306f\u3001\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u307e\u305f\u306f\u30d9\u30af\u30bf\u30fc\u753b\u50cf\u3068\u3057\u3066\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002JPEG\u306f\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u3067\u3042\u308b\u305f\u3081\u3001\u5f53\u7136JPG\u3082\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u3067\u3059\u3002<\/p>\n<p>\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u306f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u3068\u3082\u547c\u3070\u308c\u3001\u500b\u3005\u306e\u30d4\u30af\u30bb\u30eb\u3092\u683c\u5b50\u72b6\u306b\u4e26\u3079\u305f\u3082\u306e\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001\u305d\u308c\u305e\u308c\u304c\u7279\u5b9a\u306e\u8272\u76f8\u3084\u8272\u5408\u3044\u3067\u30b3\u30fc\u30c9\u5316\u3055\u308c\u305f\u7121\u6570\u306e\u5c0f\u3055\u306a\u6b63\u65b9\u5f62\uff08\u307e\u305f\u306f\u30d4\u30af\u30bb\u30eb\uff09\u306e\u96c6\u5408\u4f53\u3067\u3042\u308a\u3001\u305d\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u3063\u3066\u753b\u50cf\u5168\u4f53\u304c\u4f5c\u308a\u4e0a\u3052\u3089\u308c\u3066\u3044\u307e\u3059\uff08\u4ee5\u4e0b\u53c2\u7167\uff09\u3002<\/p>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_52300\" aria-describedby=\"caption-attachment-52300\" style=\"width: 1000px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52300 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/raster-image-example-2.png\" alt=\"\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\uff08\u753b\u50cf\u51fa\u5178: PrintCNX\uff09\" width=\"1000\" height=\"375\"><figcaption id=\"caption-attachment-52300\" class=\"wp-caption-text\">\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\uff08\u753b\u50cf\u51fa\u5178: <a href=\"https:\/\/www.printcnx.com\/resources-and-support\/addiational-resources\/raster-images-vs-vector-graphics\/\" target=\"_blank\" rel=\"noopener noreferrer\">PrintCNX<\/a>\uff09<\/figcaption><\/figure>\n<p>\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u306e\u7279\u5fb4\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3002<\/p>\n<ul>\n<li>\u5199\u771f\u3001\u30b9\u30ad\u30e3\u30f3\u3057\u305f\u753b\u50cf\u3001\u8907\u96d1\u306a\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u306a\u3069\u3001\u7dda\u306e\u306a\u3044\u30a4\u30e1\u30fc\u30b8\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/li>\n<li>\u5fae\u5999\u306a\u8272\u76f8\u3084\u9670\u5f71\u306e\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u3042\u308a\u3001\u7dda\u3084\u5f62\u304c\u304b\u306a\u308a\u4e0d\u5b9a\u5f62\u3002<\/li>\n<li>\u30d4\u30af\u30bb\u30eb\u30d9\u30fc\u30b9\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u62e1\u5927\u3059\u308b\u3068\u753b\u8cea\u306b\u554f\u984c\u304c\u751f\u3058\u308b\uff08\u753b\u8cea\u304c\u30ae\u30b6\u30ae\u30b6\u3057\u3066\u3001\u500b\u3005\u306e\u30d4\u30af\u30bb\u30eb\u304c\u6d6e\u304d\u5f6b\u308a\u306b\uff09\u3002<\/li>\n<li>\u89e3\u50cf\u5ea6\u306f\u300cdpi\u300d\uff08dot per inch\uff09\u3067\u793a\u3055\u308c\u308b\u3002<\/li>\n<li>dpi\u304c\u9ad8\u3051\u308c\u3070\u9ad8\u3044\u307b\u3069\u3001\u89e3\u50cf\u5ea6\u304c\u9ad8\u304f\u306a\u308a\u3001\u753b\u50cf\u306e\u8996\u899a\u7684\u306a\u9b45\u529b\u304c\u9ad8\u307e\u308b\u3002<\/li>\n<li>\u4e00\u822c\u7684\u306a\u30e9\u30b9\u30bf\u30fc\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306b\u306fTIFF\u3001JPEG\u3001GIF\u3001PCX\u3001BMP\u306a\u3069\u304c\u3042\u308b\u3002<\/li>\n<li>\u30a6\u30a7\u30d6\u306e\u6a19\u6e96\u3067\u3042\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u3059\u3079\u3066\u306e\u753b\u50cf\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/li>\n<\/ul>\n<p><strong>JPEG\u3084JPG\u306f\u30d9\u30af\u30bf\u30fc\u753b\u50cf\u3067\u306f\u306a\u3044<\/strong>\u3053\u3068\u306f\u3001\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_52301\" aria-describedby=\"caption-attachment-52301\" style=\"width: 1000px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52301 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/vector-image-example-1.png\" alt=\"\u30d9\u30af\u30bf\u30fc\u753b\u50cf\uff08\u753b\u50cf\u51fa\u5178: PrintCNX\uff09\" width=\"1000\" height=\"375\"><figcaption id=\"caption-attachment-52301\" class=\"wp-caption-text\">\u30d9\u30af\u30bf\u30fc\u753b\u50cf\uff08\u753b\u50cf\u51fa\u5178: <a href=\"https:\/\/www.printcnx.com\/resources-and-support\/addiational-resources\/raster-images-vs-vector-graphics\/\" target=\"_blank\" rel=\"noopener noreferrer\">PrintCNX<\/a>\uff09<\/figcaption><\/figure>\n<p>\u30d9\u30af\u30bf\u30fc\u753b\u50cf\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u591a\u89d2\u5f62\u3001\u76f4\u7dda\u3001\u66f2\u7dda\u3001\u5186\u3001\u9577\u65b9\u5f62\u306a\u3069\u306e\u5e7e\u4f55\u5b66\u7684\u5f62\u72b6\u3092\u5b9a\u7fa9\u3059\u308b\u6570\u5f0f\u306b\u57fa\u3065\u3044\u3066\u3044\u308b\u3002<\/li>\n<li>\u7dda\u753b\u306e\u3088\u3046\u306a\u76f4\u7dda\u7684\u306a\u753b\u50cf\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/li>\n<li>\u8272\u306e\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u306a\u3044\u305f\u3081\u3001\u5e73\u5766\u3067\u5747\u4e00\u306a\u8272\u306e\u753b\u50cf\u5411\u304d\u3002<\/li>\n<li>\u30ed\u30b4\u3001\u30ec\u30bf\u30fc\u30d8\u30c3\u30c9\u3001\u30d5\u30a9\u30f3\u30c8\u306a\u3069\u3001\u4e00\u822c\u7684\u306a\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u542b\u307e\u308c\u308b\u3002<\/li>\n<li>\u753b\u50cf\u5168\u4f53\u3067\u30d4\u30af\u30bb\u30eb\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u304c\u306a\u3044\u305f\u3081\u3001\u753b\u8cea\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u306b\u62e1\u5927\u7e2e\u5c0f\u304c\u53ef\u80fd\u3002<\/li>\n<\/ul>\n<h3>2. \u300cJPEG\u300d\u3068\u300cJPG\u300d\u306f\u540c\u3058\u610f\u5473<\/h3>\n<p>JPEG\u304c\u300cJoint Photographic Experts Group\u300d\u306e\u7565\u3067\u3042\u308b\u3053\u3068\u306f\u5148\u306b\u89e6\u308c\u307e\u3057\u305f\u304c\u3001JPG\u3082\u540c\u3058ISO\u306e\u7565\u79f0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>3. \u30c7\u30b8\u30bf\u30eb\u5199\u771f\u306b\u9069\u3057\u3066\u3044\u308b<\/h3>\n<p>.jpeg\u3068.jpg\u306f\u30e9\u30b9\u30bf\u30fc\u753b\u50cf\u3067\u3042\u308a\u3001\u30d9\u30af\u30bf\u30fc\u753b\u50cf\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u3069\u3061\u3089\u3082\u30c7\u30b8\u30bf\u30eb\u5199\u771f\u306b\u9069\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u5199\u771f\u3092\u30e9\u30b9\u30bf\u30fcJPEG\/JPG\u753b\u50cf\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b\u3068\u3001\u30b7\u30fc\u30e0\u30ec\u30b9\u3067\u5e83\u7bc4\u306a\u30ab\u30e9\u30fc\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u518d\u73fe\u3067\u304d\u307e\u3059\u3002.jpeg\/.jpg\u3068\u3057\u3066\u4fdd\u5b58\u3057\u3066\u30b5\u30a4\u30c8\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u3068\u3001\u7f8e\u3057\u3044\u5199\u771f\u3092\u63b2\u8f09\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/image-file-types\/\">\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\u3068\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u5f71\u97ff\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>4. \u4fdd\u5b58\u6642\u306b\u753b\u8cea\u304c\u4f4e\u4e0b\u3059\u308b<\/h3>\n<p>\u5404\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5727\u7e2e\u65b9\u5f0f\uff08\u975e\u53ef\u9006\u5727\u7e2e\uff09\u306b\u3088\u308a\u3001\u753b\u50cf\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u753b\u8cea\u304c\u591a\u5c11\u843d\u3061\u308b\u306e\u306f\u30c7\u30e1\u30ea\u30c3\u30c8\u3068\u8a00\u3048\u307e\u3059\u304c\u3001\u753b\u50cf\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u7e2e\u5c0f\u3055\u308c\u308b\u305f\u3081\u3001\u30b5\u30a4\u30c8\u306e\u8868\u793a\u901f\u5ea6\u304c\u9ad8\u901f\u306b\u306a\u308b\u306e\u306f\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<p>JPEG\u3068JPG\u306e\u76ee\u7684\u306f\u3001\u753b\u50cf\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3057\u3066\u30a6\u30a7\u30d6\u4e0a\u3067\u898b\u3084\u3059\u304f\u3059\u308b\u3053\u3068\u3068\u3001\u5e83\u304f\u8a8d\u8b58\u3055\u308c\u3066\u3044\u308b\u4e00\u822c\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3092\u4f7f\u3063\u3066\u4fdd\u5b58\u6642\u306b\u753b\u50cf\u3092\u5727\u7e2e\u3059\u308b\u7c21\u5358\u306a\u65b9\u6cd5\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001JPG\u3068JPEG\u306e\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u306f\u3001\u3069\u3061\u3089\u3082\u540c\u3058\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u5b8c\u5168\u306b\u597d\u307f\u306e\u554f\u984c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"jpeg2000\">JPEG 2000<\/h2>\n<p>JPEG\u3084JPG\u306b\u95a2\u3057\u3066\u8abf\u3079\u3066\u3044\u308b\u3068\u3001\u300c<strong>JPEG 2000<\/strong>\u300d\u3068\u3044\u3046\u8a00\u8449\u3092\u76ee\u306b\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001JPEG 2000\u306f\u305d\u308c\u307b\u3069\u4e00\u822c\u7684\u3067\u306a\u304f\u3001\u307b\u3068\u3093\u3069\u306e\u753b\u50cf\u7de8\u96c6\u30bd\u30d5\u30c8\u3067\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>JPEG 2000\u306f\u30012000\u5e74\u306bJoint Photographic Experts Group\u306b\u3088\u3063\u3066\u4f5c\u6210\u3055\u308c\u305fJPEG\u306e\u6539\u826f\u7248\u3067\u3042\u308a\u3001\u96e2\u6563\u30a6\u30a7\u30fc\u30d6\u30ec\u30c3\u30c8\u5909\u63db\uff08DWT\uff09\u306e\u9ad8\u5ea6\u306a\u5727\u7e2e\u6280\u8853\u3092\u7528\u3044\u3066\u3001\u53ef\u9006\u5727\u7e2e\u3092\u5b9f\u88c5\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u753b\u8cea\u3092\u843d\u3068\u3059\u3053\u3068\u306a\u304f<a href=\"https:\/\/kinsta.com\/jp\/blog\/optimize-images-for-web\/\">\u753b\u50cf\u3092\u6700\u9069\u5316<\/a>\u3057\u3001JPEG\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u3059\u3002<\/p>\n<p>JPEG 2000\u306b\u306f\u4e3b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u9ad8\u5ea6\u306a\u5727\u7e2e\u6280\u8853<\/strong>\u2500\u5f93\u6765\u306eJPEG\u3068\u306f\u7570\u306a\u308a\u3001\u975e\u53ef\u9006\u5727\u7e2e\u3068\u53ef\u9006\u5727\u7e2e\u306e\u4e21\u65b9\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\uff081\u3064\u306e\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3067\u3082\u53ef\uff09\u3002<\/li>\n<li><strong>\u30d7\u30ed\u30b0\u30ec\u30c3\u30b7\u30d6\u30c7\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/strong>\u2500\u753b\u50cf\u5168\u4f53\u304c\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u3066\u3044\u308b\u9593\u3001\u4f4e\u753b\u8cea\u7248\u304c\u30b5\u30a4\u30c8\u8a2a\u554f\u8005\u306b\u8868\u793a\u3055\u308c\u308b\u3002\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u5f90\u3005\u306b\u753b\u8cea\u304c\u4e0a\u304c\u3063\u3066\u3044\u304f\u3002<\/li>\n<li><strong>\u3088\u308a\u9ad8\u3044\u5727\u7e2e\u7387<\/strong>\u2500\u975e\u53ef\u9006\u5727\u7e2e\u3067\u3042\u308c\u3070\u3001\u540c\u3058\u30b5\u30a4\u30ba\u306eJPEG\u753b\u50cf\u3068\u6bd4\u8f03\u3057\u3066\u3001\u753b\u8cea\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f20\uff5e200%\u9ad8\u3044\u5727\u7e2e\u7387\u3092\u5b9f\u73fe\u3002<\/li>\n<\/ul>\n<p>\u3055\u3089\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u3082\u3002<\/p>\n<ul>\n<li>\u753b\u50cf\u306e\u900f\u660e\u5ea6\u3092\u4fdd\u6301\u3002<\/li>\n<li>2\u5024\u3001\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u3001\u30d1\u30ec\u30c3\u30c8\u30ab\u30e9\u30fc\u3001\u30d5\u30eb\u30ab\u30e9\u30fc\u306e\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u8a18\u8ff0\u53ef\u80fd\u3002<\/li>\n<li>\u30e1\u30bf\u30c7\u30fc\u30bf\u5185\u306b\u975e\u516c\u958b\u307e\u305f\u306f\u7279\u5b9a\u306e\u76ee\u7684\u306e\u60c5\u5831\u3092\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n<li>\u3088\u308a\u5927\u304d\u306a\u753b\u50cf\u30b5\u30a4\u30ba\uff0864,000\u00d764,000K\u4ee5\u4e0a\uff09\u3092\u8abf\u6574\u306a\u3057\u3067\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n<li>\u8d85\u4f4e\u9045\u5ef6\u3067\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306eTV\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u3082\u6709\u52b9\u3002<\/li>\n<li>\u89e3\u50cf\u5ea6\u3001\u753b\u8cea\u3068\u3082\u306b\u62e1\u5f35\u53ef\u80fd\u3002<\/li>\n<\/ul>\n<h3>JPEG 2000\u306e\u9650\u754c<\/h3>\n<p>\u4ee5\u4e0a\u306e\u3088\u3046\u306bJPEG2000\u306b\u306f\u30e1\u30ea\u30c3\u30c8\u304c\u591a\u6570\u3042\u308a\u3001\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u306e\u305f\u3081\u306e\u3088\u308a\u826f\u3044\u7b26\u53f7\u5316\u6a19\u6e96\u3067\u3042\u308b\u3088\u3046\u306b\u601d\u3048\u307e\u3059\u304c\u3001\u672a\u3060\u4e00\u822c\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7406\u7531\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4e3b\u8981\u306a\u30d6\u30e9\u30a6\u30b6\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\uff08Safari\u306e\u307f\uff09\u3002<\/li>\n<li>JPEG\u3068\u4e92\u63db\u6027\u304c\u306a\u3044\uff08\u65b0\u305f\u306b\u898f\u683c\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u3001\u5143\u306eJPEG\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\uff09\u3002<\/li>\n<li>JPEG 2000\u30d5\u30a1\u30a4\u30eb\u306e\u30a8\u30f3\u30b3\u30fc\u30c9\u306fCPU\u306b\u8ca0\u8377\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u8ca0\u62c5\u304c\u304b\u304b\u308a\u3001\u51e6\u7406\u304c\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<li>\u591a\u304f\u306e\u30b5\u30a4\u30c8\u3084\u30ab\u30e1\u30e9\u304c\u3001\u3053\u306e\u5f62\u5f0f\u306b\u5bfe\u5fdc\u3059\u308b\u6e96\u5099\u304c\u3067\u304d\u3066\u3044\u306a\u3044\u3002<\/li>\n<\/ul>\n<p>\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u3092\u4fdd\u5b58\u3059\u308b\u969b\u3001JPEG 2000\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u9078\u629e\u3067\u304d\u308b\u5834\u9762\u306f\u5c11\u306a\u3044\u306e\u304c\u73fe\u72b6\u3067\u3059\u3002\u78ba\u5b9f\u306bJPEG\u3088\u308a\u3082\u512a\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u306f\u3042\u308b\u3082\u306e\u306e\u3001\u4f7f\u7528\u3057\u59cb\u3081\u308b\u3068\u306a\u308b\u3068\u69d8\u3005\u306a\u4e92\u63db\u6027\u306e\u554f\u984c\u3092\u62b1\u3048\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"convert-jpg\">\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3092JPG\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5<\/h2>\n<p>\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u3092.jpg\u307e\u305f\u306f.jpeg\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\u306f\u591a\u6570\u3042\u308a\u307e\u3059\u3002\u3044\u304f\u3064\u304b\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u3057\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>1. Windows\u306e\u30da\u30a4\u30f3\u30c8<\/h3>\n<p>Windows\u3092\u304a\u4f7f\u3044\u3067\u3042\u308c\u3070\u3001\u30da\u30a4\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u7c21\u5358\u306b.jpeg\u3084.jpg\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30da\u30a4\u30f3\u30c8\u306b\u753b\u50cf\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3001\u300c<strong>\u30d5\u30a1\u30a4\u30eb <\/strong>\u300d\uff1e\u300c<strong>\u540d\u524d\u3092\u4ed8\u3051\u3066\u4fdd\u5b58<\/strong>\u300d\u3067\u4fdd\u5b58\u5148\u3092\u9078\u629e\u3057\u3001\u753b\u50cf\u540d\u3092\u5165\u529b\u3057\u3066\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-dropdown-menu\/\">\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc<\/a>\u304b\u3089\u300c<strong>JPEG\uff08*.jpg,*.jpeg,*.jpe,*.jfif\uff09<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_52882\" aria-describedby=\"caption-attachment-52882\" style=\"width: 1327px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52882 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/08\/windows-paint-3.png\" alt=\"Windows\u6a19\u6e96\u306e\u300c\u30da\u30a4\u30f3\u30c8\u300d\" width=\"1327\" height=\"917\"><figcaption id=\"caption-attachment-52882\" class=\"wp-caption-text\">Windows\u6a19\u6e96\u306e\u300c\u30da\u30a4\u30f3\u30c8\u300d<\/figcaption><\/figure>\n<p>\u6700\u5f8c\u306b\u300c<strong>\u4fdd\u5b58<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308c\u3070\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n<h3>2. Affinity Designer<\/h3>\n<p>Affinity Designer\u306f\u3001Adobe Photoshop\u306e\u3088\u3046\u306a\u753b\u50cf\u7de8\u96c6\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u4f3c\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u624b\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u753b\u50cf\u3092JPG\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b\u306b\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u3044\u3066\u753b\u50cf\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u305f\u5f8c\u3001\u5fc5\u8981\u306a\u7de8\u96c6\u3092\u884c\u3044\u3001\u300c<strong>\u30d5\u30a1\u30a4\u30eb<\/strong>\u300d\uff1e\u300c<strong>\u66f8\u304d\u51fa\u3057\u2026<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002JPEG\u30a2\u30a4\u30b3\u30f3\u3092\u9078\u629e\u3057\u3001\u753b\u8cea\uff08\u6700\u9ad8\u3001\u9ad8\u3001\u4e2d\u3001\u4f4e\uff09<em>\u3092<\/em>\u9078\u629e\u3057\u3001\u300c<strong>\u66f8\u304d\u51fa\u3057<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_52304\" aria-describedby=\"caption-attachment-52304\" style=\"width: 1416px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52304 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/export-affinity-designer-1.png\" alt=\"Affinity Designer\" width=\"1416\" height=\"949\"><figcaption id=\"caption-attachment-52304\" class=\"wp-caption-text\">Affinity Designer<\/figcaption><\/figure>\n<p>\u300c<strong>\u540d\u524d\u3092\u4ed8\u3051\u3066\u4fdd\u5b58<\/strong>\u300d\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u305f\u3089\u30d5\u30a1\u30a4\u30eb\u306e\u4fdd\u5b58\u5148\u3092\u9078\u629e\u3057\u3001\u753b\u50cf\u306b\u540d\u524d\u3092\u4ed8\u3051\u3001JPG\u3068\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_52305\" aria-describedby=\"caption-attachment-52305\" style=\"width: 1415px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-52305 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2019\/07\/save-as-affinity-designer-1.png\" alt=\"Affinity Designer\u306e\u300c\u540d\u524d\u3092\u4ed8\u3051\u3066\u4fdd\u5b58\u300d\u30c0\u30a4\u30a2\u30ed\u30b0\" width=\"1415\" height=\"947\"><figcaption id=\"caption-attachment-52305\" class=\"wp-caption-text\">Affinity Designer\u306e\u300c\u540d\u524d\u3092\u4ed8\u3051\u3066\u4fdd\u5b58\u300d\u30c0\u30a4\u30a2\u30ed\u30b0<\/figcaption><\/figure>\n<p>\u300c<strong>\u4fdd\u5b58<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308c\u3070\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n<h3>3. \u30aa\u30f3\u30e9\u30a4\u30f3\u81ea\u52d5\u5909\u63db\u30c4\u30fc\u30eb<\/h3>\n<p>\u753b\u50cf\u3092JPG\u306b\u5909\u63db\u3057\u305f\u3044\u5834\u5408\u3001\u30aa\u30f3\u30e9\u30a4\u30f3JPG\u5909\u63db\u30c4\u30fc\u30eb\u304c\u591a\u6570\u5b58\u5728\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/www.xnview.com\/en\/xnconvert\/#downloads\" target=\"_blank\" rel=\"noopener noreferrer\">XnConvert<\/a>\uff1aWindows\u3001Mac\u3001Linux\u3092\u4f7f\u7528\u3057\u3066\u69d8\u3005\u306a\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u6271\u3046\u3001\u9ad8\u5ea6\u306a\u753b\u50cf\u7de8\u96c6\u8005\u306b\u304a\u52e7\u3081\u3002\u4e00\u62ec\u5909\u63db\u6a5f\u80fd\u3042\u308a\u3002<\/li>\n<li><a href=\"https:\/\/www.zamzar.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Zamzar<\/a>\uff1a\u30b5\u30a4\u30ba\u306e\u5927\u304d\u306a\u753b\u50cf\uff0850MB\u4ee5\u5185\uff09\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u3067\u306e\u53d7\u3051\u53d6\u308a\u306e\u6709\u7121\u3092\u9078\u629e\u3067\u304d\u308b\u7121\u6599\u30c4\u30fc\u30eb\u3002<\/li>\n<li><a href=\"https:\/\/macroplant.com\/adapter\/image-converter\" target=\"_blank\" rel=\"noopener noreferrer\">Adapter<\/a>\uff1a\u30d0\u30c3\u30c1\u753b\u50cf\u5bfe\u5fdc\u3067\u3001\u77ac\u6642\u306b\u5909\u63db\u53ef\u80fd\u306a\u30b7\u30f3\u30d7\u30eb\u306a\u753b\u50cf\u5909\u63db\u30c4\u30fc\u30eb\u3002macOS\u3068Windows\u5bfe\u5fdc\u3002<\/li>\n<\/ul>\n<p>\u4e0a\u8a18\u306f\u3042\u304f\u307e\u3067\u4e00\u90e8\u3067\u3042\u308a\u3001\u4ed6\u306b\u3082\u3054\u7d39\u4ecb\u3057\u304d\u308c\u306a\u3044\u307b\u3069\u306e\u9078\u629e\u80a2\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>JPG\u3068JPEG\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u753b\u50cf\u3092\u4fdd\u5b58\u30fb\u4fdd\u7ba1\u3059\u308b\u969b\u306b\u6700\u3082\u4e00\u822c\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u304a\u3088\u3073\u5727\u7e2e\u65b9\u5f0f\u3002\u8996\u899a\u7684\u306b\u9b45\u529b\u7684\u306a\u753b\u50cf\u3092\u8868\u793a\u3057\u3001\u512a\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u78ba\u4fdd\u3057\u305f\u3044\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>.jpeg\u3001.jpg\u3001.webp\u306e\u3044\u305a\u308c\u306e\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u9078\u3093\u3067\u3082\u3001\u7f8e\u3057\u3044\u753b\u50cf\u3092\u9ad8\u901f\u3067\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30b5\u30a4\u30c8\u6240\u6709\u8005\u306f\u3001\u5e38\u306b\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3092\u6271\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059 &#8230;<\/p>\n","protected":false},"author":38,"featured_media":24001,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[103,68],"topic":[839,815,774],"class_list":["post-23990","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-design","tag-webdesign","topic-wordpress-website-design","topic-web-design","topic-image-optimization"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0fJPG\u3068JPEG\u306e\u9055\u3044\uff08\uff0bJPEG 2000\uff09<\/title>\n<meta name=\"description\" content=\"JPEG\u3068JPG\u306e\u9055\u3044\u3092\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\u5b9f\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001JPEG\u3068JPG\u306e\u9055\u3044\u306b\u8feb\u308a\u307e\u3059\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:\/\/kinsta.com\/jp\/blog\/jpg-vs-jpeg\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0fJPG\u3068JPEG\u306e\u9055\u3044\uff08\uff0bJPEG 2000\uff09\" \/>\n<meta property=\"og:description\" content=\"JPEG\u3068JPG\u306e\u9055\u3044\u3092\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\u5b9f\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001JPEG\u3068JPG\u306e\u9055\u3044\u306b\u8feb\u308a\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kinsta.com\/jp\/blog\/jpg-vs-jpeg\/\" \/>\n<meta property=\"og:site_name\" content=\"Kinsta\u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/fm.brianleejackson\" \/>\n<meta property=\"article:published_time\" content=\"2019-09-02T14:32:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-11T09:11:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/09\/jpg-vs-jpeg.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1460\" \/>\n\t<meta property=\"og:image:height\" content=\"730\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Brian Jackson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:description\" content=\"JPEG\u3068JPG\u306e\u9055\u3044\u3092\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\u5b9f\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001JPEG\u3068JPG\u306e\u9055\u3044\u306b\u8feb\u308a\u307e\u3059\u3002\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/09\/jpg-vs-jpeg.jpg\" \/>\n<meta name=\"twitter:creator\" content=\"@brianleejackson\" \/>\n<meta name=\"twitter:site\" content=\"@Kinsta_JP\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Brian Jackson\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/jpg-vs-jpeg\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/jpg-vs-jpeg\/\"},\"author\":{\"name\":\"Brian Jackson\",\"@id\":\"https:\/\/kinsta.com\/jp\/#\/schema\/person\/079824c00ccc2b7141504f27ea63bef7\"},\"headline\":\"\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0fJPG\u3068JPEG\u306e\u9055\u3044\uff08\uff0bJPEG 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