I am referring to the first line of Bengali text. I have viewed it in Acrobat Reader, epdfview, Chrome's PDF Reader, Firefox's pdf reader and my iPhone's pdf r

I am referring to the first line of Bengali text. I have viewed it in Acrobat Reader, epdfview, Chrome's PDF Reader, Firefox's pdf reader and my iPhone's pdf reader. The problems are that joint-letter ligatures are not used, and several vowels signs are placed after the consonant when they should have been placed before them.