Our editorial group (all Mac users) has been happily using Acrobat 9 for review and markup of PDFs for ages now. With the arrival of some new Macs running 10.10, things have gotten difficult. Acrobat 9 just does not seem to run well in 10.10 and a few are stuck with an update problem that I've not been able to solve. Upgrading to Acrobat DC seems like it might be the most reasonable solution, but that's not without it's own headaches.
The strangest and most annoying of these headaches is the behavior of the T-with-a-star tool. This tool was formerly known as the Text Correction Markup tool, but is now mysteriously named the "Enable text correction keyboard shortcuts" tool; a search for which returns exactly two completely unhelpful google search results.
Anyhooz, the problem: When I attempt to use that tool to insert a word or to replace a word, Acrobat ignores the first keystroke every single time.
To be more accurate, if I type very slowly, I can see that it doesn't actually ignore that first keystroke, but simply loses it. With the first keystroke, the insert or cross-out and replace markup appears, as does a new comment popup box for the replacement text and that first character entered in the comment popup box...but that character is selected! So, as I finish typing the rest of the replacement text, that very first character in the popup box is typed over.
This seems to be standard behavior on every install of Acrobat DC. Is this a bug that will be fixed? Or is there a setting that needs to be adjusted? I could try to teach every editor to type the first character of their edit twice or something, but that seems ridiculous. I searched back in all the versions I have available and found that it works properly in Acrobat 8 and 9. The tool was lost in Acrobat X. The tool was returned in Acrobat XI, but with this new, goofy functionality.
Additionally, I the tools don't seem to work if I double-click to select a single word; only if I click and drag to select the word. If I triple-click to select the line, the text edit tools do seem to work. What's up with that? That is surely a bug, no?
Edit: I found the option to turn on the tool labels and it looks like the T-with-a-star tool is still named the "Text Correction Markup" tool. So that tool tip is just wrong since it has nothing to do with what the tool actually does.
/edit