Note: This topic does not apply if you purchased ScreenFlow from the Mac App Store. The App Store has its own installation and licensing procedure.ScreenFlow must be licensed to fully enable the export capabilities. If ScreenFlow is not licensed, all exported files are watermarked.License functions are locked, and require administrator access to prevent guests from removing your license. Click the lock at the bottom of the window to make changes, then click the lock again, when you’re done.