Hey guys! Thanks a lot for the help!
I'm really not confortable reading for a long time in the pdf. I really prefer epubs or pdbs. The reading is usually more confortable.
I was able to extract the highlights from ereader and from stanza. Not easy, but I could get a nice text on word with which I can work smoothly.
If anyone is interested, I made a tutorial to keep with me, but I can easily post it here. Can I do it?!