A good idea is always to copy the text and paste it in a word processor – showing invisibles you will see how the pdf is really formatted textwise. Then you can see what exactly is before and after the token you are looking for.
"Behind all the inhuman aspects of automation (...) its real possibilities appear: the genesis of a technological world in which man can finally withdraw from (...) the apparatus of his labor – in order to experiment freely with it." /Marcuse