Annotations not showing in the Comments

[texnslim]

I am working with a PDF file edited by another user. The other user made many annotations using the Comments feature. I can see many annotation marks in the PDF file, but only one of the annotations is showing in the Comments tab. If I hover my cursor over the annotation marks, nothing happens--it's as if the document were flattened somehow. Has anyone seen this before? How can I instruct the other user to fix the file so that I can see the Comments?

[George_Johnson]

If it was flattened, there's not much that can be done unless they have a copy of the file before it was flattened. Are you able to select the annotations on the page using the Hand tool?

[texnslim]

No, the hand tool doesn't do anything to the annotations, just moves the page. I didn't even know that it was possible to flatten a PDF file so that the annotations are inaccessible. Thank you!

[Document Geek]

If you ever need to flatten a PDF, you can find the script to do so here: Flattenizer Script for Adobe PDFs