diff --git a/htdocs/core/tpl/filemanager.tpl.php b/htdocs/core/tpl/filemanager.tpl.php
index 6ff7bba2390..bfd10e25424 100644
--- a/htdocs/core/tpl/filemanager.tpl.php
+++ b/htdocs/core/tpl/filemanager.tpl.php
@@ -86,6 +86,9 @@ if ($module == 'ecm') {
 	print '<img id="refreshbutton" class="toolbarbutton" border="0" src="'.DOL_URL_ROOT.'/theme/common/view-refresh.png">';
 	print '</a>';
 }
+if ($permtoadd) {
+	print '<a href="'.$_SERVER["PHP_SELF"].'?action=confirmconvertimgwebp&website='.$website->ref.'" class="button bordertransp"'.$disabled.' title="'.dol_escape_htmltag($langs->trans("GenerateImgWebp")).'"><span class="fa fa-cogs"><span></a>';
+}
 
 // Start "Add new file" area
 $nameforformuserfile = 'formuserfileecm';
@@ -133,6 +136,45 @@ if ($action == 'delete_section') {
 }
 // End confirm
 
+if ($action == 'confirmconvertimgwebp') {
+	print $form->formconfirm($_SERVER["PHP_SELF"].'?website='.$website->ref, $langs->trans('ConfirmImgWebpCreation'), $langs->trans('ConfirmGenerateImgWebp', $object->ref), 'convertimgwebp', '', "yes", 1);
+	$action = 'file_manager';
+}
+
+if ($action == 'convertimgwebp' && $permtoadd) {
+	if ($module == 'medias') {
+		$imagefolder = $conf->website->dir_output.'/'.$websitekey.'/medias/image/'.$websitekey.'/';
+	} else {
+		$imagefolder = $conf->ecm->dir_output;
+	}
+
+	include_once DOL_DOCUMENT_ROOT.'/core/lib/images.lib.php';
+
+	$regeximgext = getListOfPossibleImageExt();
+
+	$filelist = dol_dir_list($imagefolder, "all", 1, $regeximgext);
+
+	foreach ($filelist as $filename) {
+		$filepath = $filename['fullname'];
+		if (!(substr_compare($filepath, 'webp', -strlen('webp')) === 0)) {
+			if (image_format_supported($filepath) == 1) {
+				$filepathnoext = preg_replace("/\..*/", "", $filepath);
+				$result = dol_imageResizeOrCrop($filepath, 0, 0, 0, 0, 0, $filepathnoext.'.webp');
+				if (!dol_is_file($result)) {
+					$error++;
+					setEventMessages($result, null, 'errors');
+				}
+			}
+		}
+		if ($error) {
+			break;
+		}
+	}
+	if (!$error) {
+		setEventMessages($langs->trans('SucessConvertImgWebp'), null);
+	}
+	$action = 'file_manager';
+}
 
 if (empty($action) || $action == 'editfile' || $action == 'file_manager' || preg_match('/refresh/i', $action) || $action == 'delete') {
 	$langs->load("ecm");
diff --git a/htdocs/langs/en_US/ecm.lang b/htdocs/langs/en_US/ecm.lang
index 71df60734fb..2bac434deb0 100644
--- a/htdocs/langs/en_US/ecm.lang
+++ b/htdocs/langs/en_US/ecm.lang
@@ -41,3 +41,7 @@ FileNotYetIndexedInDatabase=File not yet indexed into database (try to re-upload
 ExtraFieldsEcmFiles=Extrafields Ecm Files
 ExtraFieldsEcmDirectories=Extrafields Ecm Directories
 ECMSetup=ECM Setup
+GenerateImgWebp=Convert all images into webp
+ConfirmGenerateImgWebp=If you confirm, you will generate all images in this folder and subfolder in webp format...
+ConfirmImgWebpCreation=Confirm all images convertion
+SucessConvertImgWebp=Images successfully converted
diff --git a/htdocs/website/index.php b/htdocs/website/index.php
index b7609878196..60e4b514e01 100644
--- a/htdocs/website/index.php
+++ b/htdocs/website/index.php
@@ -2275,36 +2275,6 @@ if ($action == 'generatesitemaps' && $usercanedit) {
 	$action = 'preview';
 }
 
-$imagefolder = $conf->website->dir_output.'/'.$websitekey.'/medias/image/'.$websitekey.'/';
-
-if ($action == 'convertimgwebp' && $usercanedit) {
-	include_once DOL_DOCUMENT_ROOT.'/core/lib/images.lib.php';
-
-	$regeximgext = getListOfPossibleImageExt();
-
-	$filelist = dol_dir_list($imagefolder, "all", 1, $regeximgext);
-
-	foreach ($filelist as $filename) {
-		$filepath = $filename['fullname'];
-		if (!(substr_compare($filepath, 'webp', -strlen('webp')) === 0)) {
-			if (image_format_supported($filepath) == 1) {
-				$filepathnoext = preg_replace("/\..*/", "", $filepath);
-				$result = dol_imageResizeOrCrop($filepath, 0, 0, 0, 0, 0, $filepathnoext.'.webp');
-				if (!dol_is_file($result)) {
-					$error++;
-					setEventMessages($result, null, 'errors');
-				}
-			}
-		}
-		if ($error) {
-			break;
-		}
-	}
-	if (!$error) {
-		setEventMessages($langs->trans('SucessConvertImgWebp'), null);
-	}
-	$action = 'preview';
-}
 
 /*
  * View
@@ -2320,10 +2290,6 @@ if ($action == 'confirmgeneratesitemaps') {
 	$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"].'?website='.$website->ref, $langs->trans('ConfirmSitemapsCreation'), $langs->trans('ConfirmGenerateSitemaps', $object->ref), 'generatesitemaps', '', "yes", 1);
 	$action = 'preview';
 }
-if ($action == 'confirmconvertimgwebp') {
-	$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"].'?website='.$website->ref, $langs->trans('ConfirmImgWebpCreation'), $langs->trans('ConfirmGenerateImgWebp', $object->ref), 'convertimgwebp', '', "yes", 1);
-	$action = 'preview';
-}
 $helpurl = 'EN:Module_Website|FR:Module_Website_FR|ES:M&oacute;dulo_Website';
 
 $arrayofjs = array(
@@ -2542,7 +2508,6 @@ if (!GETPOST('hide_websitemenu')) {
 			// Generate site map
 			print '<a href="'.$_SERVER["PHP_SEFL"].'?action=confirmgeneratesitemaps&website='.$website->ref.'" class="button bordertransp"'.$disabled.' title="'.dol_escape_htmltag($langs->trans("GenerateSitemaps")).'"><span class="fa fa-sitemap"><span></a>';
 
-			print '<a href="'.$_SERVER["PHP_SEFL"].'?action=confirmconvertimgwebp&website='.$website->ref.'" class="button bordertransp"'.$disabled.' title="'.dol_escape_htmltag($langs->trans("GenerateImgWebp")).'"><span class="fa fa-cogs"><span></a>';
 			print ' &nbsp; ';
 
 			print '<a href="'.$_SERVER["PHP_SEFL"].'?action=replacesite&website='.$website->ref.'" class="button bordertransp"'.$disabled.' title="'.dol_escape_htmltag($langs->trans("ReplaceWebsiteContent")).'"><span class="fa fa-search"><span></a>';
@@ -3882,7 +3847,7 @@ if ($action == 'preview') {
 	print $formconfirm;
 }
 
-if ($action == 'editfile' || $action == 'file_manager') {
+if ($action == 'editfile' || $action == 'file_manager' || $action == 'convertimgwebp' || $action == 'confirmconvertimgwebp') {
 	print '<!-- Edit Media -->'."\n";
 	print '<div class="fiche"><br>';
 	//print '<div class="center">'.$langs->trans("FeatureNotYetAvailable").'</center>';