The SignWord Pro software may be downloaded from the APCO Graphics, Inc. website free of charge. It may be installed and used on an unlimited number of computers within your organization. You may not redistribute the software for profit. You may not reverse engineer or otherwise modify the software from its current state. By downloading the SignWord Pro software, you acknowledge that APCO Graphics, Inc. retains all copyrights and other proprietary rights to the software. SignWord is a registered trademark of APCO Graphics, Inc.