Getting font name in text pdf

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VB

My Aim is to find the difference between formulas and normal letters.

Can we get each word (font name or style or font size) using adobe sdk or any other sdk

or else suggest me, even if it license version also.

I have attached PDF for the reference.

https://docs.google.com/file/d/0B_nzYHWVJJ7KejhhU3RNa0xzQjA/edit?usp=sharing

or else

Can we find styling for each formula present in pdf??