$tmp_name = tempnam(_PS_TMP_IMG_DIR_, 'PS');
if ($error || (!$tmp_name || !move_uploaded_file($file['tmp_name'], $tmp_name)))
    return false;
/* Original file */
if (!ImageManager::resize($tmp_name, _PS_UPLOAD_DIR_.$file_name))
    $this->errors[] = Tools::displayError('An error occurred during the image upload process.');
/* A smaller one */
elseif (!ImageManager::resize($tmp_name, _PS_UPLOAD_DIR_.$file_name.'_small', $product_picture_width, $product_picture_height))
    $this->errors[] = Tools::displayError('An error occurred during the image upload process.');
elseif (!chmod(_PS_UPLOAD_DIR_.$file_name, 0777) || !chmod(_PS_UPLOAD_DIR_.$file_name.'_small', 0777))
    $this->errors[] = Tools::displayError('An error occurred during the image upload process.');
else
    $this->context->cart->addPictureToProduct($this->product->id, $indexes[$field_name], Product::CUSTOMIZE_FILE, $file_name);

if (!move_uploaded_file($file['tmp_name'], _PS_UPLOAD_DIR_.$file_name))
    return false;
elseif (!chmod(_PS_UPLOAD_DIR_.$file_name, 0777))
    $this->errors[] = Tools::displayError('An error occurred during the image upload process.');
else
    $this->context->cart->addPictureToProduct($this->product->id, $indexes[$field_name], Product::CUSTOMIZE_FILE, $file_name);

if (!move_uploaded_file($file['tmp_name'], _PS_UPLOAD_DIR_.$file_name))

if (!ImageManager::isCorrectImageFileExt($file['name'], array('txt')))
    $this->errors[] = Tools::displayError('Ошибка: необходимо расширение файла txt.');

if ($error = ImageManager::validateUpload($file, (int)Configuration::get('PS_PRODUCT_PICTURE_MAX_SIZE')))
    $this->errors[] = $error;

<span class="col-lg-4 control-label"><strong>{if $data['name']}{$data['name']}{else}{l s='Picture #'}{$data@iteration}{/if}</strong></span>
<div class="col-lg-8">
    <a href="displayImage.php?img={$data['value']}&amp;name={$order->id|intval}-file{$data@iteration}" target="_blank">
        <img class="img-thumbnail" src="{$smarty.const._THEME_PROD_PIC_DIR_}{$data['value']}_small" alt="" />
    </a>
</div>

<span class="col-lg-4 control-label"><strong>{if $data['name']}{$data['name']}{else}{l s='Picture #'}{$data@iteration}{/if}:</strong>
    <a href="{$smarty.const._THEME_PROD_PIC_DIR_}{$data['value']}" target="_blank">{$data['name']}</a>
</span>