## replace(input_file_name, output_file_name, pattern, replacement) {#str_str_str_str} Replaces all occurrences of a specified character string pattern with a replacement string in the input file. ......output format is an image (BMP, EMF, EPS, GIF, JPEG, PNG, or WebP)...output format is an image (BMP, EMF, EPS, GIF, JPEG, PNG, or WebP)...