In the appstore you have some alternatives but these are not free.
https://appstore.home.mendix.com/link/app/1736/Finaps/Document-Generation
https://appstore.home.mendix.com/link/app/2026/Appronto/Word-Merging-For-Mendix
https://appstore.home.mendix.com/link/app/1069/Pink-Elephant/Dynamic-Documents-Module
Regards,
Ronald