...damnit, #AcrobatReader is _such_ a piece of crap nowadays.
It's been declining for years, constantly triggering "out of memory" errors when I opened up multiple PDFs at the same time. But I've reached my limit when it crashed multiple times when I tried to search a very simple three-page PDF - while displaying an " #AI Assistant" bar that I didn't ask for and cannot seem to switch off.
I've now installed SumatraPDF . #Adobe is not worth the aggravation.
I've said it before and I'll say it again: how is that the worst way to look at a file type they created is their own reader?
@rorystarr Yeah, they had a nice near-monopoly going. Why ruin it by not making even a token effort for improving the basic user experience?
@juergen_hubert bizarre thing about the "ai" search function IME is it doesnt even appear to work as well as regular Ctrl+f at finding written content in the document. 
Thanks for the tip on the alternate reader.
@juergen_hubert Is SumatraPDF a Linux or Apple thing? I didn't find it in Google Play Store.
@dedicto No, it's strictly a Windows thing.
But I am sure that Linux has its own share of non-crappy PDF readers. And I use ezPDF for Android.
@juergen_hubert Thanks for the tips! I no longer use Microsoft Windows — I recently switched to Pop_OS! (an Ubuntu variant from Linux hardware manufacturer System76) for the desktop, and its default PDF reader seems to work fine. But all my mobile devices currently still use Android, and I'm definitely going to check out ezPDF. I haven't had as many crash issues with Acrobat Reader as you have, but the AI Assistant icon is damned annoying, and I'm sure Adobe is doing serious surveillance. I tried ReadEra for Android, but it kept saving unsolicited duplicate copies of every PDF I opened, which I consider to be unacceptable behavior.
@juergen_hubert @dedicto I use mupdf on Arch Linux, very lightweight and satisfactory for ordinary viewing--especially convenient for people accustomed to Vim editor keys. It has some limitations like an inability to input Korean, so if I need those features I just open the file up on a browser lol. For still more advanced features like commenting I open up Evince, which is a bit wonky and old fashioned and probably not for everyone but it's fine for my uses xD
@ljwrites @juergen_hubert I also checked out ezPDF in Google play store, but it had low ratings (3.1). ReadEra had much better ratings (4.9), but my personal experience with it was unsatisfactory.
@ljwrites @juergen_hubert Maybe I'll give ezPDF a try despite the low ratings.
@juergen_hubert I did exactly the same last week. I've used Sumatra off and on for years, but Adobe finally tipped over to being practically unusable.
@juergen_hubert
Wow. I feel lucky that I haven’t had to use a windows machines in years (except for gaming)
Years ago I switched to Foxit from Acrobat on Windows XP. Summatra seemed best on Win10.
I use Okular on Linux, which does multiple formats, annotation etc.
I found that on Android that PocketBook (an epub app) was best for PDF viewing, doing two pages in correct order.
I use Nebo to annotate PDF on Android (handwriting to text conversion).
Also LO Writer now creates PDFs nicely.