A file may have many types of comments, many colors, many authors, etc. If one wants to hide only one variety (e.g., the color red), one has to select all but the red dot and then press the Apply button for the filtered selections.
This would be simpler if one could select only the red dot and press a new Exclude button/function. Further, Apply and Exclude could be combined to mimic an electrical (ON | OFF) switch.

For very large files with many comments, filtering consumes a lot of time. For shared files on servers, the time is magnified by the back and forth between the server and the user's pc. It would be useful to have an in progress indication that shows filtering activity or the lack thereof.

I have an existing comment, and I use ... Copy Text to copy it.

Then I go to another part of my PDF file, select the text and right click to use "Add Note to Text". In the comment text box, I right click and choose Paste Text (or alternatively, I press CTRL-V to use the default Windows "paste" mechanism).

My new comment ends up with the copied comment text PLUS an extra carriage return (cursor is on a newline). That is NOT what I wanted! Why does it add the extra carriage return? If I am just trying to copy a comment from point A to point B in my document, I now need to use my keyboard to backspace and remove that carriage return. This is extra work for no added value! I want EXACTLY what I copied.

If I really wanted a new line, then I would press return and then start typing whatever extra I wanted to add. Please don't assume this is what I am going to do!

I copied the following because this user said it better than me...except he was referencing Reader, not Acrobat Pro. I am an Acrobat Pro DC subscriber. I relied on this feature in Pro 8.1 until recently upgrading.

COPIED: I almost always use adobe ACROBAT in exactly the same way: I mostly read scientific papers and use the comment tools to highlight and/or make notes for myself. This means that almost every time I open up ACROBAT, I will want the comment tools open and it's irritating to have to re-open the comment tools every single time. #FirstWorldProblems I know, but it can't be that hard to add an option to load on startup. Or to just remember the last toolbar state.

Thanks for your consideraton.

One of the most common things we do as art directors, design directors and creative directors is to comment on PDF's.

In doing that we have to make boxes or circles to show where we want to make changes.

Almost every PDF editor under the sun has Red Stroke, NO Fill as default for this reason.

In Acrobat I have to click 3 times before I can get to set any object as no fill.

I'm really happy to be able to change fill colour of my rectangle or circle, but at least have one of the colours in the default colour picker be transparent instead of having to double click into the Mac OS colour picker.

And in fact why am I having to mix the colours in the Mac OS colour picker anyway.

What is this like 1997?

Considering every other adobe program has an extensive Adobe colour mixed and colour selection tool built in I find it very strange that you are relying on the MacOS colour picker to do this in Acrobat.

(And please don't tell me to turn down the opacity because that affects the stroke aswell. I just want a regular old, red line rectangle with no fill.)

Can you make comments private? i.e I want to send PDF to A&B via cloud, but I dont want A to see B comments and vice versa. Is this doable?

So there is no way to 'segregate' participants? I am wanting to share a file with people who I do not want to be able to see other participants comments. So what is the point of sharing I hear you ask? I want to share with internal staff, but only want external invitees to comment/mark up without seeing the internal discussion about what they have to say, as it may be 'sensitive'. We dont want 2 versions of the document, one internal and one external. We just want to have more control with what information is availabe to read.