{"id":79,"date":"2022-08-08T11:08:02","date_gmt":"2022-08-08T11:08:02","guid":{"rendered":"https:\/\/obambu.com\/tutos\/wordpress\/?p=79"},"modified":"2022-08-08T11:08:04","modified_gmt":"2022-08-08T11:08:04","slug":"jpg-et-png-quelle-est-la-difference-et-quand-utiliser-chaque-format","status":"publish","type":"post","link":"https:\/\/obambu.com\/tutos\/jpg-et-png-quelle-est-la-difference-et-quand-utiliser-chaque-format\/","title":{"rendered":"JPG et PNG : quelle est la diff\u00e9rence et quand utiliser chaque format ?"},"content":{"rendered":"\n<p>Il est ind\u00e9niable que le choix de bonnes images pour votre site est tr\u00e8s important. Mais vous ne saviez peut-\u00eatre pas que le choix du bon format de fichier <strong>(JPG ou PNG)<\/strong> peut \u00eatre tout aussi important.<\/p>\n\n\n\n<p>Le choix d&#8217;un mauvais format peut entra\u00eener un ralentissement de la vitesse de chargement de votre page ou une <strong>perte de performance<\/strong> globale du site.<\/p>\n\n\n\n<p>Mais ne vous inqui\u00e9tez pas, dans cet article, nous allons expliquer la diff\u00e9rence entre JPG et PNG et voir lequel vous convient le mieux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Principales diff\u00e9rences entre JPG et PNG<\/h2>\n\n\n\n<p>Les images JPG conviennent bien aux photos prises avec un appareil photo num\u00e9rique qui pr\u00e9sentent des couleurs et un \u00e9clairage complexes. Leur capacit\u00e9 de compression en fait \u00e9galement une bonne option pour l&#8217;utilisation sur les sites, car la quantit\u00e9 de donn\u00e9es utilis\u00e9es par image peut \u00eatre consid\u00e9rablement r\u00e9duite et la perte de qualit\u00e9 n&#8217;est pas tr\u00e8s importante.<\/p>\n\n\n\n<p>Le format PNG (Portable Network Graphics), quant \u00e0 lui, a \u00e9t\u00e9 con\u00e7u pour le transfert d&#8217;images sur Internet. Contrairement \u00e0 un fichier JPG, ce format peut prendre en charge la transparence. Cela signifie que vous pouvez avoir un arri\u00e8re-plan transparent autour d&#8217;un objet au lieu d&#8217;avoir une bo\u00eete de contour carr\u00e9e.<\/p>\n\n\n\n<p>Voici une image pour illustrer ce que je dis :<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/obambu.com\/guide\/wp-content\/uploads\/2021\/07\/JPG-vs-PNG.png\" alt=\"JPG PNG\" class=\"wp-image-3842\"\/><\/figure>\n\n\n\n<p>En outre, la compression des fichiers <strong>PNG <\/strong>&#8220;<strong><a href=\"https:\/\/techterms.com\/definition\/lossless\" target=\"_blank\" rel=\"noreferrer noopener\">lossless<\/a><\/strong>&#8220;. Cela signifie que peu importe la taille de l&#8217;image, elle ne perdra pas en qualit\u00e9, ce qui est id\u00e9al si vous voulez modifier une image ou un logo.<\/p>\n\n\n\n<p>L&#8217;inconv\u00e9nient est que ces types de fichiers sont g\u00e9n\u00e9ralement beaucoup plus volumineux qu&#8217;un fichier JPG ordinaire. Ainsi, si vous souhaitez t\u00e9l\u00e9charger une image sur votre site avec un fichier PNG, cela peut entra\u00eener des probl\u00e8mes de performance sur votre site Web.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lequel dois-je utiliser ?<\/h2>\n\n\n\n<p>Il n&#8217;y a pas vraiment de type de fichier sp\u00e9cifique auquel vous devriez toujours vous tenir. Au bout du compte, les deux types de fichiers excellent dans des domaines diff\u00e9rents. Vous devez utiliser l&#8217;un ou l&#8217;autre en fonction de ce que vous voulez faire avec une image.<\/p>\n\n\n\n<p>Par exemple, si vous souhaitez simplement t\u00e9l\u00e9charger une image pour embellir votre <strong>article de blog<\/strong>, optez pour un fichier <strong>JPG<\/strong>. Il est plus petit et permettra \u00e0 votre page de se charger rapidement et correctement.<\/p>\n\n\n\n<p>D&#8217;autre part, si vous souhaitez modifier et t\u00e9l\u00e9charger votre logo sur votre site, il est pr\u00e9f\u00e9rable de le faire avec un fichier <strong>PNG<\/strong>. L&#8217;arri\u00e8re-plan transparent vous permettra d&#8217;ajouter des nuances \u00e0 votre logo si vous le souhaitez et l&#8217;effet de compression sans perte signifie que votre logo sera beau et net sur l&#8217;en-t\u00eate de votre site.<\/p>\n\n\n\n<p>Maintenant que vous savez quand utiliser chaque format de fichier, vous serez peut-\u00eatre int\u00e9ress\u00e9 par la lecture d&#8217;autres articles techniques int\u00e9ressants. N&#8217;h\u00e9sitez pas \u00e0 consulter d&#8217;autres tutoriels et <strong><a href=\"http:\/\/obambu.com\/tutos\" target=\"_blank\" rel=\"noreferrer noopener\">articles sur l&#8217;h\u00e9bergement ici<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Il est ind\u00e9niable que le choix de bonnes images pour votre site est tr\u00e8s important. Mais vous ne saviez peut-\u00eatre pas que le choix du bon format de fichier (JPG ou PNG) peut \u00eatre tout aussi important. Le choix d&#8217;un mauvais format peut entra\u00eener un ralentissement de la vitesse de chargement de votre page ou<\/p>\n","protected":false},"author":1,"featured_media":80,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-79","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-uncategorized"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.5.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JPG et PNG : quelle est la diff\u00e9rence et quand utiliser chaque format ? - Tutoriels d\u00b4Obambu<\/title>\n<meta name=\"description\" content=\"Un mauvais choix entre les formats PNG ou JPG peut entra\u00eener une perte de performance du site. 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