it is ok if you succeed..
but i think,your pdf document may have some kind of protection...(for abbyy it doesn't take 30 minutes for one conversation)...(i didn't remember this problem since now..
..i don't know but maybe this is it.)
there are some kind of protection that when you look the pdf you don't see any,but when you copy and paste the text,result is like yours...(meaningless characters)...
but i open such documents with
Abbyy Fine Reader....
with no problem