Please see below. When I upgraded to Acrobat Pro 2017, I seem to have lost the ability/location of this comment tool. Where is it now? Thank you, please advise.
Look at Tools > Comments
It's called the Text Callout commenting tool, and if your screenshot is of your upgraded version, I see it as indicated below:
In Acrobat Pro 2017, take a look below to see where the tool resides.
You'll need to click on the drawing comment tool to see it.
I hope this is helpful.
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