We have a bookmarked PDF that has over 900 comments in it and it appears to be loading those comments extremely slow in Acrobat 2017 Std. perpetual version. We only have one license so far and our other users are still on Acrobat XI Std. The problem does not occur in Acrobat XI. Has the problem been resolved? We have the latest update installed, so not sure what else to try.
Sorry for the delayed response.
Are you still facing this issue? If yes, please try following troubleshooting steps:
1- Reset Preferences for Acrobat using the steps given in this link: How to reset Acrobat Preference settings to default. reboot the machine after resetting preferences and try again.
2- If issue still persists, try repairing Acrobat using "repair installation" option under Help menu (for Windows OS only), reboot the machine after repair and check.
Does this happen with this specific document only? Have you tried with other pdfs?
Also, let us know the operating system and the Acrobat dot version installed on the machine: Identify the product and its version for Acrobat and Reader DC