// Fix simple uploader view

admin-dev/themes/default/template/helpers/uploader/simple.tpl

@@ -23,6 +23,13 @@
 *  International Registered Trademark & Property of PrestaShop SA
 *}
 {if isset($files) && $files|count > 0}
+	{assign var='show_thumbnail' value=false}
+	{foreach $files as $file}
+		{if isset($file.image) && $file.type == 'image'}
+			{assign var='show_thumbnail' value=true}
+		{/if}
+	{/foreach}
+{if $show_thumbnail}
 <div class="form-group">
 	<div class="col-lg-12" id="{$id}-images-thumbnails">
 		{foreach $files as $file}
@@ -43,13 +50,14 @@
 	</div>
 </div>
 {/if}
+{/if}
 {if isset($max_files) && $files|count >= $max_files}
 <div class="row">
 	<div class="alert alert-warning">{l s='You have reached the limit (%s) of files to upload, please remove files to continue uploading' sprintf=$max_files}</div>
 </div>
 {else}
 <div class="form-group">
-	<div class="col-lg-6">
+	<div class="col-lg-12">
 		<input id="{$id}" type="file" name="{$name}"{if isset($multiple) && $multiple} multiple="multiple"{/if} class="hide" />
 		<div class="dummyfile input-group">
 			<span class="input-group-addon"><i class="icon-file"></i></span>