Where has the check box gone?!

The Shift-K combination is potentially hazardous for users who switch back and forth between, say, an InDesign document and a PDF while making proofreader's changes. Typing anything with just the Shift key as modifier can lead to unintentionally typing a character into the InDesign document — if the user doesn't remember to activate the PDF document window first. When there was a visible checkbox in the PDF, that couldn't happen because the user had to click in the PDF window to check the box.

Please bring back the checkbox.

And maybe switch the checkbox modifier key to a safer one. (Why does Preferences use Command-K? How many users access preferences so often that they need an easy command key for that?

+1 for bringing it back. The current solution is not intuitive in the slightest.

If this were truly a "modernized" experience, it would be a toggle under preferences to alter the default state. First rule of UI/UX, when redesigning something, never add more clicks than the user is accustomed to.

Please bring back the checkbox.

Please bring it back. It didn't need to go. What were you thinking Adobe.

PLEASE bring the check mark back. Making it a 3-step process is NOT modern and definitely not streamlined. This is a huge disappointment.

Thank you for the Shift-K workaround -- until Adobe decides that isn't modern and takes it away, too.

This is a Whisky Tango Foxtrot.

Until Adobe decide to maybe bring back the «Unchecked» empty box for the checkmark, please use the keyboard shortcut Shift+K to check/uncheck it.

To those of you for whom the new changes are are a deal breaker and you need to revert to Acrobat 2018 for workflow purposes, I have outlined the process here: How to Get the Old Version of Acrobat Back​.

The worst part of this "modernization" is that this literally happened while I was in the middle of a work day while I was editing documents. Suddenly *POFF! The checkbox is gone. Took me 30 minutes to figure out what happened and another 30 for Adobe support to tell me it was intentional. Your product team HAS to stop making changes simply for the sake of change. Do some research. Interview your customers. Maybe run a UX testing session before rolling out updates that double our workload. Bring back checkboxes by default!

Until the comment check-boxes are returned (hopefully soon!), consider using this (paid-for) tool I've developed in order to make the review process easier and faster: Custom-made Adobe Scripts: Acrobat/Reader -- Comments Review Tools

It allows you to quickly check (or un-check) multiple comments with a single command (all comments / selected comments / comments on the current page / comments by a specific author / etc.), and it even supports keyboard shortcuts for faster access.

Hopefully it will help reduce the strain until this problem is solved by Adobe...