I wrote a proposal and sent it in PDF form to my supervisor. She highlighted the proposal and left comments, but I can't see these comments when the PDF is opened in Windows or Ubuntu. I tried foxit reader and Adobe Reader, but in both, the highlights are visible, but comments appear as empty rectangles. Are there any apps or online web sites that I can use to see the comments?

  • 2
    Firstly, welcome to Ask Different! :) Are you able to add some more details such as what your supervisor used to review the PDF (e.g. Mac v PC, and what software). Also, have you tried opening the file with Preview just to see what happens? Finally, please advise what version of macOS you're running.
    – Monomeeth
    Dec 19, 2018 at 11:54
  • @Monomeeth - I think the OP created and is reading the returned PDF in a non-macOS environment and the supervisor opened and commented on a macOS system. I edited to make this clearer. User137927 - I think the problem may be font related. Your supervisor may have used a font on her macOS system for the comments which is not available in Windows or Ubuntu.
    – IconDaemon
    Dec 19, 2018 at 12:31
  • @IconDaemon Ah yes, I think you're right. That seems to be a better interpretation of the question! :)
    – Monomeeth
    Dec 19, 2018 at 12:52
  • @Monomeeth Thanks :) My supervisor said that she used preview for commenting, but I can't open and see them at all.
    – user137927
    Dec 19, 2018 at 20:39


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