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diff --git a/main/img/icons/svg/folder_users.svg b/main/img/icons/svg/folder_users.svg
index af363f754e..c0bf2a00a3 100644
--- a/main/img/icons/svg/folder_users.svg
+++ b/main/img/icons/svg/folder_users.svg
@@ -593,12 +593,12 @@
      id="base"
      showgrid="false"
      inkscape:zoom="2.1820285"
-     inkscape:cx="135.11036"
+     inkscape:cx="23.51695"
      inkscape:cy="23.683867"
-     inkscape:window-width="1325"
-     inkscape:window-height="747"
-     inkscape:window-x="41"
-     inkscape:window-y="344"
+     inkscape:window-width="1319"
+     inkscape:window-height="744"
+     inkscape:window-x="47"
+     inkscape:window-y="24"
      inkscape:window-maximized="1"
      inkscape:current-layer="svg548"
      units="px" /><metadata
@@ -872,9 +872,9 @@ folder-1.ai</rdf:li></rdf:Alt></dc:title></rdf:Description><cc:Work
        id="xpacket8">
 end='w'</xpacket></metadata><g
      id="g5539"
-     inkscape:export-filename="/var/www/chamilo11/main/img/icons/128/folder_users.png"
-     inkscape:export-xdpi="90"
-     inkscape:export-ydpi="90"><rect
+     inkscape:export-filename="/var/www/chamilo11/main/img/icons/22/folder_users.png"
+     inkscape:export-xdpi="15.46875"
+     inkscape:export-ydpi="15.46875"><rect
        y="0"
        x="0"
        height="128"
diff --git a/main/inc/lib/document.lib.php b/main/inc/lib/document.lib.php
index 2996efcafc..7f451c89f8 100755
--- a/main/inc/lib/document.lib.php
+++ b/main/inc/lib/document.lib.php
@@ -5697,38 +5697,38 @@ class DocumentManager
                 }
                 $icon = 'folder_users.png';
             } else {
-                $icon = 'folder_document.gif';
+                $icon = 'folder_document.png';
 
                 if ($path == '/audio') {
-                    $icon = 'folder_audio.gif';
+                    $icon = 'folder_audio.png';
                     if ($isAllowedToEdit) {
                         $basename = get_lang('HelpDefaultDirDocuments');
                     } else {
                         $basename = get_lang('Audio');
                     }
                 } elseif ($path == '/flash') {
-                    $icon = 'folder_flash.gif';
+                    $icon = 'folder_flash.png';
                     if ($isAllowedToEdit) {
                         $basename = get_lang('HelpDefaultDirDocuments');
                     } else {
                         $basename = get_lang('Flash');
                     }
                 } elseif ($path == '/images') {
-                    $icon = 'folder_images.gif';
+                    $icon = 'folder_images.png';
                     if ($isAllowedToEdit) {
                         $basename = get_lang('HelpDefaultDirDocuments');
                     } else {
                         $basename = get_lang('Images');
                     }
                 } elseif ($path == '/video') {
-                    $icon = 'folder_video.gif';
+                    $icon = 'folder_video.png';
                     if ($isAllowedToEdit) {
                         $basename = get_lang('HelpDefaultDirDocuments');
                     } else {
                         $basename = get_lang('Video');
                     }
                 } elseif ($path == '/images/gallery') {
-                    $icon = 'folder_gallery.gif';
+                    $icon = 'folder_gallery.png';
                     if ($isAllowedToEdit) {
                         $basename = get_lang('HelpDefaultDirDocuments');
                     } else {
@@ -5742,7 +5742,7 @@ class DocumentManager
                         $basename = get_lang('ChatFiles');
                     }
                 } elseif ($path == '/learning_path') {
-                    $icon = 'folder_learningpath.gif';
+                    $icon = 'folder_learningpath.png';
                     if ($isAllowedToEdit) {
                         $basename = get_lang('HelpFolderLearningPaths');
                     } else {
@@ -5756,7 +5756,7 @@ class DocumentManager
             return Display::img($icon, $basename, array(), false);
         }
 
-        return Display::return_icon($icon, $basename, array(), ICON_SIZE_MEDIUM);
+        return Display::return_icon($icon, $basename, array(), ICON_SIZE_SMALL);
     }
 
     /**
diff --git a/main/inc/lib/fileDisplay.lib.php b/main/inc/lib/fileDisplay.lib.php
index 84b368586d..b14b3420d7 100755
--- a/main/inc/lib/fileDisplay.lib.php
+++ b/main/inc/lib/fileDisplay.lib.php
@@ -134,11 +134,11 @@ function choose_image($file_name)
         $type['freemind'] = array('mm');
 
         $image['word'] = 'word.gif';
-        $image['web'] = 'file_html.gif';
-        $image['image'] = 'file_image.gif';
+        $image['web'] = 'file_html.png';
+        $image['image'] = 'file_image.png';
         $image['image_vect'] = 'file_svg.png';
         $image['audio'] = 'file_sound.gif';
-        $image['video'] = 'film.gif';
+        $image['video'] = 'film.png';
         $image['excel'] = 'excel.gif';
         $image['compressed'] = 'file_zip.gif';
         $image['code'] = 'icons/22/mime_code.png';
@@ -179,31 +179,31 @@ function choose_image($file_name)
 function chooseFolderIcon($folderPath)
 {
     if ($folderPath == '/shared_folder') {
-        return 'folder_users.gif';
+        return 'folder_users.png';
     }
 
     if (strstr($folderPath, 'shared_folder_session_')) {
-        return 'folder_users.gif';
+        return 'folder_users.png';
     }
 
     switch ($folderPath) {
         case '/audio':
-            return 'folder_audio.gif';
+            return 'folder_audio.png';
         case '/flash':
-            return 'folder_flash.gif';
+            return 'folder_flash.png';
         case '/images':
-            return 'folder_images.gif';
+            return 'folder_images.png';
         case '/video':
-            return 'folder_video.gif';
+            return 'folder_video.png';
         case '/images/gallery':
-            return 'folder_gallery.gif';
+            return 'folder_gallery.png';
         case '/chat_files':
-            return 'folder_chat.gif';
+            return 'folder_chat.png';
         case '/learning_path':
-            return 'folder_learningpath.gif';
+            return 'folder_learningpath.png';
     }
 
-    return 'folder_document.gif';
+    return 'folder_document.png';
 }
 
 /**