{"id":173043,"date":"2021-07-27T09:06:00","date_gmt":"2021-07-27T13:06:00","guid":{"rendered":"https:\/\/www.techsmith.com\/learn\/tutorials\/redimensionnement-rotation-retournement-image\/"},"modified":"2026-02-25T17:06:17","modified_gmt":"2026-02-25T22:06:17","slug":"redimensionnement-rotation-retournement-image","status":"publish","type":"tutorial","link":"https:\/\/www.techsmith.fr\/learn\/tutoriels\/snagit\/redimensionnement-rotation-retournement-image\/","title":{"rendered":"Redimensionnement, rotation ou retournement d\u2019une image"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div>\n<p>Modifiez la taille et l\u2019orientation d\u2019une image pour\u00a0:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>respecter la r\u00e9solution requise pour ins\u00e9rer une image sur un site\u00a0Web\u00a0;<\/li>\n\n\n\n<li>ajuster la r\u00e9solution pour ins\u00e9rer une image dans une zone pr\u00e9cise d\u2019un document\u00a0;<\/li>\n\n\n\n<li>ajuster l\u2019orientation d\u2019une image pour cr\u00e9er un document imprim\u00e9<\/li>\n<\/ul>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"h-resize-an-image\">Redimensionnement d\u2019une image<\/h2>\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"653\" height=\"452\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-ResizeImageEx1.png\" alt=\"Exemple d&#x2019;image redimensionn&#xE9;e\" class=\"wp-image-170376\" style=\"width:453px;height:314px\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-ResizeImageEx1.png 653w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-ResizeImageEx1-300x208.png 300w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-ResizeImageEx1-150x104.png 150w\" sizes=\"auto, (max-width: 653px) 100vw, 653px\" \/><\/figure>\n\n<div class=\"notice notice-snagit\">\n\t<p><b>Remarque\u00a0:<\/b> Apr\u00e8s avoir redimensionn\u00e9 une image, vous ne pouvez plus d\u00e9placer ni modifier les objets aplatis de l\u2019image.<\/p>\n<\/div>\n\n<ol class=\"wp-block-list\">\n<li>Dans Snagit Editor, s\u00e9lectionnez le <strong>menu Image\u00a0&gt; Redimensionner l\u2019image<\/strong> ou cliquez sur les dimensions de l\u2019image au bas du canevas.<br\/><img loading=\"lazy\" decoding=\"async\" width=\"263\" height=\"233\" class=\"wp-image-230462\" style=\"width: 263px;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2022\/12\/s2023-resize-image-win.png\" alt=\"Options de redimensionnement d&#x2019;image sous Windows\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2022\/12\/s2023-resize-image-win.png 263w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2022\/12\/s2023-resize-image-win-150x133.png 150w\" sizes=\"auto, (max-width: 263px) 100vw, 263px\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"289\" height=\"280\" class=\"wp-image-230468\" style=\"width: 289px;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2022\/12\/s2023-resize-image-mac.png\" alt=\"Options de redimensionnement d&#x2019;image sur Mac\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2022\/12\/s2023-resize-image-mac.png 289w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2022\/12\/s2023-resize-image-mac-150x145.png 150w\" sizes=\"auto, (max-width: 289px) 100vw, 289px\" \/><\/li>\n\n\n\n<li><strong>Mac\u00a0:<\/strong> d\u00e9finissez la <strong>densit\u00e9 de pixels<\/strong> (facultatif). La densit\u00e9 de pixels se mesure en pixels par pouce. Pour afficher tous les pixels, saisissez la valeur\u00a0<strong>1<\/strong>.<div class=\"tip tip-snagit\">\n\t<p>Conseil\u00a0: enregistrez les changements de densit\u00e9 de pixels en premier.<\/p>\n\t<p>Il est recommand\u00e9 d\u2019enregistrer les changements de densit\u00e9 de pixels avant de modifier davantage la taille de l\u2019image. Cliquez sur <strong>Redimensionner<\/strong> pour enregistrer les changements.<\/p>\n<\/div><\/li>\n\n\n\n<li>S\u00e9lectionnez une option dans la liste d\u00e9roulante <strong>Unit\u00e9s<\/strong>\u00a0:\n<ul class=\"wp-block-list\">\n<li><strong>Pour cent\u00a0:<\/strong> met l\u2019image \u00e0 l\u2019\u00e9chelle selon un pourcentage de la taille de l\u2019image.<\/li>\n\n\n\n<li><strong>Pixels\u00a0:<\/strong> met l\u2019image \u00e0 l\u2019\u00e9chelle en fonction des pixels de l\u2019\u00e9cran.<\/li>\n\n\n\n<li><strong>Pouces\u00a0:<\/strong> met l\u2019image \u00e0 l\u2019\u00e9chelle en pouces.<\/li>\n\n\n\n<li><strong>Centim\u00e8tres\u00a0:<\/strong> met l\u2019image \u00e0 l\u2019\u00e9chelle en centim\u00e8tres.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Entrez une <strong>largeur<\/strong> et une <strong>hauteur<\/strong> en fonction de l\u2019unit\u00e9 s\u00e9lectionn\u00e9e. Cliquez sur l\u2019ic\u00f4ne <img loading=\"lazy\" decoding=\"async\" width=\"21\" height=\"21\" class=\"wp-image-170316\" style=\"width: 21px;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-AspectRatioLock.png\" alt=\"ic&#xF4;ne de verrouillage du rapport hauteur\/largeur\"\/> pour entrer les unit\u00e9s avec un autre rapport hauteur\/largeur. <div class=\"notice notice-snagit\"> <p><b>Remarque\u00a0:<\/b> La modification du rapport hauteur\/largeur peut rendre l\u2019image floue ou la d\u00e9former.<\/p> <\/div><\/li>\n\n\n\n<li><strong>Windows\u00a0:<\/strong> cliquez sur <strong>Options avanc\u00e9es<\/strong> et r\u00e9glez les options suppl\u00e9mentaires selon vos besoins\u00a0:\n<ul class=\"wp-block-list\">\n<li><strong>R\u00e9solution\u00a0:<\/strong> d\u00e9finit la densit\u00e9 des pixels d\u2019une image. La r\u00e9solution est mesur\u00e9e en points par pouce (ppp).<\/li>\n\n\n\n<li><strong>Utiliser le r\u00e9\u00e9chantillonnage\u00a0:<\/strong> modifie le nombre de pixels d\u2019une image. Cette option permet de r\u00e9\u00e9chantillonner l\u2019image en y ajoutant des pixels. D\u00e9sactivez-la pour supprimer des pixels superflus et ainsi r\u00e9duire la taille du fichier. <div class=\"notice notice-snagit\"> <p><b>Remarque\u00a0:<\/b> Utilisez les autres options de redimensionnement avant d\u2019activer <strong>Utiliser le r\u00e9echantillonnage<\/strong>, car cette option peut d\u00e9t\u00e9riorer d\u00e9finitivement la qualit\u00e9 de l\u2019image.<\/p> <\/div><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Cliquez sur le bouton <strong>Appliquer<\/strong> (Windows) ou <strong>Redimensionner<\/strong> (Mac).<\/li>\n<\/ol>\n\n<div class=\"notice notice-snagit\">\n\t<p><b>Remarque\u00a0:<\/b> L\u2019option de zoom affiche une vue agrandie de l\u2019image sur le canevas, mais elle ne modifie pas la taille de l\u2019image elle-m\u00eame.<br\/><img loading=\"lazy\" decoding=\"async\" width=\"243\" height=\"146\" class=\"wp-image-170411\" style=\"width: 243px;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/08\/s22-MagnifyImageOptions.png\" alt=\"Options de zoom\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/08\/s22-MagnifyImageOptions.png 243w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/08\/s22-MagnifyImageOptions-150x90.png 150w\" sizes=\"auto, (max-width: 243px) 100vw, 243px\" \/><\/p>\n<\/div>\n\n<h2 class=\"wp-block-heading\" id=\"h-rotate-an-image\">Rotation d\u2019une image<\/h2>\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"497\" height=\"263\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateImageEx1.png\" alt=\"Exemple de rotation d&#x2019;une image\" class=\"wp-image-170370\" style=\"width:474px;height:251px\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateImageEx1.png 497w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateImageEx1-300x159.png 300w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateImageEx1-150x79.png 150w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/figure>\n\n<div class=\"notice notice-snagit\">\n\t<p><b>Remarque\u00a0:<\/b> Apr\u00e8s avoir fait pivoter une image, vous ne pouvez plus d\u00e9placer ni modifier les objets aplatis de l\u2019image.<\/p>\n<\/div>\n\n<p>Dans Snagit Editor\u00a0:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Windows\u00a0:<\/strong> s\u00e9lectionnez le <strong>menu Image\u00a0> Faire pivoter\u00a0> option de rotation<\/strong>.<br\/><img loading=\"lazy\" decoding=\"async\" width=\"519\" height=\"147\" class=\"wp-image-170389\" style=\"width: 519px;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateMenu.png\" alt=\"Menu Faire pivoter l\u2019image sous Windows\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateMenu.png 519w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateMenu-300x85.png 300w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateMenu-150x42.png 150w\" sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/>\n<ul class=\"wp-block-list\">\n<li><strong>Sens horaire\u00a0:<\/strong> fait pivoter l\u2019image \u00e0 90\u00b0 dans le sens des aiguilles d\u2019une montre.<\/li>\n\n\n\n<li><strong>Sens antihoraire\u00a0:<\/strong> fait pivoter l\u2019image \u00e0 90\u00b0 dans le sens inverse des aiguilles d\u2019une montre.<\/li>\n\n\n\n<li><strong>180\u00a0degr\u00e9s\u00a0:<\/strong> fait pivoter l\u2019image \u00e0 180\u00b0.<\/li>\n\n\n\n<li><strong>Angle personnalis\u00e9\u00a0:<\/strong> saisissez l\u2019angle voulu en degr\u00e9s. L\u2019angle saisi doit \u00eatre un entier positif.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Mac\u00a0:<\/strong> s\u00e9lectionnez le <strong>menu Image > Faire pivoter l\u2019image<\/strong>. S\u00e9lectionnez une option de rotation dans la bo\u00eete de dialogue qui s\u2019affiche.<br\/><img loading=\"lazy\" decoding=\"async\" width=\"469\" height=\"449\" class=\"wp-image-170463\" style=\"width: 469px;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateDialogMac.png\" alt=\"Bo\u00eete de dialogue Faire pivoter l\u2019image sur Mac\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateDialogMac.png 469w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateDialogMac-300x287.png 300w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-RotateDialogMac-150x144.png 150w\" sizes=\"auto, (max-width: 469px) 100vw, 469px\" \/>\n<ul class=\"wp-block-list\">\n<li>Saisissez l\u2019angle voulu en degr\u00e9s. L\u2019angle saisi doit \u00eatre un entier positif.<\/li>\n\n\n\n<li>Cliquez et faites glisser la commande circulaire pour faire pivoter l\u2019image vers la gauche ou vers la droite.<\/li>\n\n\n\n<li>Cliquez sur le bouton de rotation pour faire pivoter l\u2019image dans le sens horaire par incr\u00e9ments de 90\u00a0degr\u00e9s.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"h-flip-an-image\">Retournement d\u2019une image<\/h2>\n\n<div class=\"notice notice-snagit\">\n\t<p><b>Remarque :<\/b> Si vous choisissez une option de retournement, Snagit retourne \u00e9galement le texte et les annotations de l\u2019image.<\/p>\n<\/div>\n\n<p>Dans Snagit\u00a0Editor, s\u00e9lectionnez le <strong>menu Image\u00a0&gt; Disposer &gt; option de retournement<\/strong>\u00a0:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Retourner verticalement\u00a0:<\/strong> retourne l\u2019image dans le sens vertical (de haut en bas).<br\/><img loading=\"lazy\" decoding=\"async\" width=\"766\" height=\"237\" class=\"wp-image-170328\" style=\"width: 100%;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipVertical-1.png\" alt=\"Exemple d&#x2019;image retourn&#xE9;e verticalement\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipVertical-1.png 766w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipVertical-1-300x93.png 300w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipVertical-1-150x46.png 150w\" sizes=\"auto, (max-width: 766px) 100vw, 766px\" \/><\/li>\n\n\n\n<li><strong>Retourner horizontalement\u00a0:<\/strong> retourne l\u2019image dans le sens horizontal (de la gauche vers la droite) pour cr\u00e9er une image en miroir.<br\/><img loading=\"lazy\" decoding=\"async\" width=\"765\" height=\"237\" class=\"wp-image-170346\" style=\"width: 100%;\" src=\"https:\/\/www.techsmith.com\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipHorizontal-1.png\" alt=\"Exemple d&#x2019;image retourn&#xE9;e horizontalement\" srcset=\"https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipHorizontal-1.png 765w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipHorizontal-1-300x93.png 300w, https:\/\/www.techsmith.fr\/learn\/wp-content\/uploads\/2021\/10\/s22-FlipHorizontal-1-150x46.png 150w\" sizes=\"auto, (max-width: 765px) 100vw, 765px\" \/><\/li>\n<\/ul>\n\n<style>\n    .product-cta{\n        width: 100%;\n        margin: 1rem 0;\n    }\n    .main-cta{\n        display: flex;\n        padding: 2rem;\n        border-radius: 10px;\n        margin-right: 0;\n        gap: 1.5rem;\n        background: #EEFAFF;\n    }<br \/>\n    .main-cta img{\n       margin: 0;\n       padding: 0;\n       width: 7.5rem;\n    }\n    .main-cta h4{\n       margin: -0.3rem 0 0 0;\n       padding: 0;\n       font-weight: 700;\n  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noopener\">Acheter<\/a><\/div>\n<\/div>\n<\/div>\n<div class=\"current-user\">\n<p>* Vous utilisez Snagit 2024 ou une version ant\u00e9rieure\u00a0? Consultez la page <a href=\"https:\/\/www.techsmith.fr\/learn\/tutoriels\/snagit\/aide-des-versions-precedentes-snagit\/\" target=\"_blank\" rel=\"noreferrer noopener\">Aide des versions pr\u00e9c\u00e9dentes<\/a>.<\/p>\n<\/div>\n<\/div>\n\n \n","protected":false},"excerpt":{"rendered":"<p>Modifiez la taille et l\u2019orientation d\u2019une image pour\u00a0: Redimensionnement d\u2019une image Remarque\u00a0: Apr\u00e8s avoir redimensionn\u00e9 une image, vous ne pouvez plus d\u00e9placer ni modifier les objets aplatis de l\u2019image. Remarque\u00a0: L\u2019option de zoom affiche une vue agrandie de l\u2019image sur le canevas, mais elle ne modifie pas la taille de l\u2019image elle-m\u00eame. Rotation d\u2019une image [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":345297,"template":"single-tutorial-redesign.php","tcategory":[1211],"ttag":[1357],"tutorial_folder":[],"class_list":["post-173043","tutorial","type-tutorial","status-publish","has-post-thumbnail","hentry","tcategory-modification-des-captures","ttag-snagit"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.4 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Redimensionnement, rotation ou retournement d\u2019une image | Snagit Tutorial<\/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.techsmith.fr\/learn\/tutoriels\/snagit\/redimensionnement-rotation-retournement-image\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Redimensionnement, rotation ou retournement d\u2019une image | Snagit Tutorial\" \/>\n<meta property=\"og:description\" content=\"Modifiez la taille et l\u2019orientation d\u2019une image pour\u00a0: Redimensionnement d\u2019une image Remarque\u00a0: Apr\u00e8s avoir redimensionn\u00e9 une image, vous ne pouvez plus d\u00e9placer ni modifier les objets aplatis de l\u2019image. Remarque\u00a0: L\u2019option de zoom affiche une vue agrandie de l\u2019image sur le canevas, mais elle ne modifie pas la taille de l\u2019image elle-m\u00eame. 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