WebDesign can automatically back up your files on save or you can manually backup your files whenever you feel it is necessary
Automatically Backup documents
WebDesign will back up your documents automatically each time you save if you set it to do so. Setting up WebDesign to backup your files automatically is simple. Just open the Preferences and select the 'Documents' tab. Then check the 'Create Backup on Save' option and select your backup folder. By default a Backup folder is created in the same folder as the WebDesign application if you do not select one.
Manually Backup Documents
You can back up the current document manually whenever you feel you need to. Just go to the File menu and select 'Back Up Document'->'Make Backup Now'. WebDesign will make a backup of the current document in your Backup Folder. If you have not selected one in the Preferences under the 'Document' tab, WebDesign will create one for you in the same folder as the WebDesign application.