Matthias Nott

Well, my version of the script does not mess with the system files. It just patches Skim. And FWIW, I don't consider this a "not this serious" bug, since it makes Skim mostly unusable: I don't see why I should be messing around with rotating my pages all the time. Anyway, if you look at the script, you see that it defaults to not needing root, not needing sip, and hence not patching anything in the system files. It just patches Skim itself, to point to a version of PDFKit which it brings along; and...

Works well on my system.... ¯_(ツ)_/¯

Oh yeah, to answer my own question, my old fix that I've described here: https://github.com/mnott/skimenabler solves this problem. So essentially, I open a command line, and then do this: cd ~/Desktop git clone https://github.com/mnott/skimenabler cd skimenabler ./install.sh When starting Skim again, highlighting seems to work just fine. I had forgotten about that solution which I created a while ago when having other problems with Skim - sometimes, we do need to remember drinking our own koolaid......

Update from here, Apple closed those bug reports saying they are duplicates, and did not reveal duplicates of which. It really sucks since it makes Skim entirely unusable on High Sierra for annotating. I used to read tons of scientifc articles with Skim, and now it seems it's over.

Can't confirm. Adding a note, double clicking around on other notes, note stays on 100%. Also changing the opacity down from 100% to something else, and again double clicking around, doesn'thelp.

Update: Installed latest update, no fix. Skim is practically unusable right now.

Sure, and I've of course done a bug report.

I may sound like a PITA, but would that not be much more adequate to raise this case from the point of view from Christiaan? After all, this lets all users of Skim (again, see last year) very much hanging out there to dry, since all annotations / highlights are now unusable.