handwriting notes on tablet

I’m using PowerMusic with my Tablet Notebook. Is it possible to add some notes or highlight text passages in an PDF file with my stylus?
Maybe this feature would be possible in future versions? Maybe it is possible to edit your pdf-file in an external program, then add some notes and go back to PowerMusic.
thank you!

Thanks for your input.
Yes, this is something we are looking at for future versions - the ability to write on sheet music whether it has been imported from pdf or scanned directly into Power Music.
This will be an important addition and may well be included in Power Music 4.