Open the PDF file in Adobe Acrobat Reader. 2. Click File / Properties menu. A dialog will open up. 3. In this dialog there will be a 'Fonts' tab. Click the 'Fonts' tab. All the fonts used in the PDF file will be listed. If it is a 'Tamil' language pdf file there will also be tamil font listed (bamini, tsc, latha etc).
Hope you find this helps,