how to print or export annotations in a pdf file?

I have a pdf file containing annotations from someone else (I assume they are made in windows with some Adobe software, but I'm not sure).

They look like that:

and can be displayed in Preview.appor Skim.appon the left of each page:

However, I'd like to print them (together with the pages) and/or find a way to export them to a text document.

How can I do that?

This is probably too late but I think I know the answer, so maybe it'll help someone. What you probably want to do is

1. Convert notes to skim notes
2. Go to File > Export > choose File format either Notes as RTF or Notes as text.

This answers your 'export to text document' questions. I don't see how you could print the PDF together with the text in the anchored notes, though.

Skim has a "Take Snapshot" feature which allows you to print anything which is visually on the page. It also has a "Convert Notes" feature which turns PDF annotations into "skim notes" which you can then manipulate.

All of this is under the File Menu:

I just ran into this problem using Mac OS 10.14.6

Loading in Preview with annotations and saving as PDF still left the annotations invisible in Chrome's PDF viewer.

So I did "Save as Postscript", then loaded the .ps file in Preview, and did "Save as PDF", and the annotations showed in Chrome.