Oh

, I am very sorry, I was stupid

.... I did not even try because I thought that if there is no text, no OCR layer , just photo ...
I feel like some sort of hand scribble , hand underlining, small short annotations are very convenient, like with real book...
It is allmost natural do do this.... I realise that maybe it is big
rewrite of whole code thing to accoplish this, I suppose....
Latest firmware updates of Pocketbook made very promissing and smooth hanwriting experience, with very accurate and allmost no-lag gestures...Default reading app uses this and it is very usable.