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Hii

try using the below function in your file

public static function copyImg($id_entity, $id_image, $sourcePath, $entity = 'products', $regenerate = true) {
        $watermark_types = explode(',', Configuration::get('WATERMARK_TYPES'));

        switch ($entity) {
            default:
            case 'products':
                $image_obj = new Image($id_image);
                $path = $image_obj->getPathForCreation();
                break;
            case 'categories':
                $path = _PS_CAT_IMG_DIR_ . (int) $id_entity;
                break;
            case 'manufacturers':
                $path = _PS_MANU_IMG_DIR_ . (int) $id_entity;
                break;
            case 'suppliers':
                $path = _PS_SUPP_IMG_DIR_ . (int) $id_entity;
                break;
        }

        ImageManager::resize($sourcePath, $path . '.jpg');
        $images_types = ImageType::getImagesTypes($entity);

        if ($regenerate) {
            foreach ($images_types as $image_type) {
                ImageManager::resize($sourcePath, $path . '-' . stripslashes($image_type['name']) . '.jpg', $image_type['width'], $image_type['height']);
                if (in_array($image_type['id_image_type'], $watermark_types))
                    Hook::exec('actionWatermark', array('id_image' => $id_image, 'id_product' => $id_entity));
            }
        }
        return true;
    }

Hii

try using the below function in you file

public static function copyImg($id_entity, $id_image, $sourcePath, $entity = 'products', $regenerate = true) {
        $watermark_types = explode(',', Configuration::get('WATERMARK_TYPES'));

        switch ($entity) {
            default:
            case 'products':
                $image_obj = new Image($id_image);
                $path = $image_obj->getPathForCreation();
                break;
            case 'categories':
                $path = _PS_CAT_IMG_DIR_ . (int) $id_entity;
                break;
            case 'manufacturers':
                $path = _PS_MANU_IMG_DIR_ . (int) $id_entity;
                break;
            case 'suppliers':
                $path = _PS_SUPP_IMG_DIR_ . (int) $id_entity;
                break;
        }

        ImageManager::resize($sourcePath, $path . '.jpg');
        $images_types = ImageType::getImagesTypes($entity);

        if ($regenerate) {
            foreach ($images_types as $image_type) {
                ImageManager::resize($sourcePath, $path . '-' . stripslashes($image_type['name']) . '.jpg', $image_type['width'], $image_type['height']);
                if (in_array($image_type['id_image_type'], $watermark_types))
                    Hook::exec('actionWatermark', array('id_image' => $id_image, 'id_product' => $id_entity));
            }
        }
        return true;
    }