Convert Sarjudas Font to Unicode Mangal font

Attach please find the Sarjudas Font which needs to be converted into UNICODE font (Mangal). You can do this using either word macro or write an executable or php, windows, vb script or any tool of your choice. To my best knowledge word macro would be the best possible option. Or if you have XP Machine then may be you can try chitrankan software as well. Anyway all I need is a tool which will convert the text in docx Sarjudas Font into Mangal Font. Remember there are more than 1400 pages so your macro should must be able to handle large data set.