hai

i want ask something
how to translate word in pdf dokument
like this

http://www.citcat.com/cc?i=http%3A%2F%2Fth...1&t=l&m=2&lw_s=

this is thestar press..when we read and we don't know the meaning some word..we only move the mouse to that word and the meaning of that word will appears in malay

if can i want to make like this when i read the pdf dokumen