licensing

I already purchase Premium version of this library.
And when i go for update my old library with new library so need to purchase again,

no, you no need.
you just need:
--replace rdpdflib.so
--replace package com.radaee.pdf
--and com.radaee.view if you are using it.

which files are necessary for pdf view and add and remove annotation

Before this version ,i used 1.1
and in this version most of methods changed for annoatation.
Can you inform me where need to change in existing library's classes ?
Update fast.

You need to update the packages:
com.radaee.pdf
com.radaee.reader
com.radaee.util

update the libs folder (native lib + jar)

i did this but method compare to 1.1 changed.
So not getting propare output from new version