I currently study and annotate a 115MB PDF file. The application begins to slow down when the file size goes beyond 118 MB and doesn't even open up above 120 MB file size. (The increase in file size is due to additional annotations). However, other 3rd-party apps (eg PDF expert) are able to open the file without a single hiccup.
Comment markup and annotate
Crash or freeze
I currently study and annotate a 115MB PDF file. The application begins to slow down...
Are you working with the beta version? If not, we can move your post from Acrobat Reader for Mobile (beta) to a better forum where you are more likely to get a proper response. The beta forum is mostly abandoned.