// Define it in configuration file. And call it // About configurations: https://codeigniter.com/user_guide/libraries/config.html $wm_font_size = 16; // Watermark height (font size) contains 16% of image $this->load->library('upload'); $this->load->library('image_lib'); $config['image_library'] = 'GD2'; for ($i = 0; $i < $number_of_files; $i++) { $_FILES['file']['name'] = $files['file']['name'][$i]; $_FILES['file']['type'] = $files['file']['type'][$i]; $_FILES['file']['tmp_name'] = $files['file']['tmp_name'][$i]; $_FILES['file']['error'] = $files['file']['error'][$i]; $_FILES['file']['size'] = $files['file']['size'][$i]; $config['source_image'] = $files['file']['tmp_name'][$i]; $config['wm_text'] = 'Copyright example.com'; $config['wm_type'] = 'text'; $config['wm_font_size'] = ceil($files['file'][image_height][$i]/100*wm_font_size); $config['wm_vrt_alignment'] = 'middle'; $config['wm_hor_alignment'] = 'center'; $this->image_lib->initialize($config); $this->image_lib->watermark(); $config['source_image'] = $files['file']['tmp_name'][$i]; $config['wm_overlay_path'] = './application/assets/images/example.png'; $config['wm_type'] = 'overlay'; $config['width'] = '50'; $config['height'] = '50'; $config['padding'] = '50'; $config['wm_opacity'] = '100'; $config['wm_vrt_alignment'] = 'bottom'; $config['wm_hor_alignment'] = 'right'; $config['wm_vrt_offset'] = '100'; $this->image_lib->initialize($config); $this->image_lib->watermark(); if (!$this->upload->do_upload("file")) { $errors++; }