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I'm trying to view my advisor's comments on a PDF of a manuscript. He's made comments using Adobe software in the past, and I've been able to use evince or okular to view them. Now neither works, and I'm kind of at a loss for what to do. Is there a way to view PDF comments on Ubuntu 20.04?

I'm happy to provide any supporting information, but other than that I'm on 20.04 and have up-to-date apt installed versions of Okular and Evince I don't know what else to say. Note also that this response does not actually resolve my issue, which is with viewing someone else's comments, not making comments someone else can read.

LGS
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  • are you getting any error messages when you view the file in evince? And both firefox and chromium can open pdf - not sure if the comments would show up. – fcbsd Dec 02 '20 at 17:15

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You can try your luck with Master PDF Editor, which is considered as one of the best free (not open-source) PDF editors for highlighting, annotating and adding/reading comments on PDF files.

To install it, download the .deb package 64 bit - For CentOS/RedHat 7.x, Ubuntu 16.x - 20.x from here and save it (e.g. in your ~/Downloads).

Then open your terminal and run:

sudo apt install ~/Downloads/master-pdf-editor-5.6.80-qt5.x86_64.deb

If you haven't downloaded the package in ~/Downloads, change ~/Downloads to your actual download path in the above command.

BeastOfCaerbannog
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  • Actually this seems to have similar issues to evince/firefox; the PDF comment function allows someone to place a caret somewhere, indicating that text they type into a text box should be inserted there. For whatever reason, this text appears if I hold my mouse over the caret for a bit (kind of like a tooltip), but like a tooltip it goes away if I move my mouse at all. Unlike a highlighted comment I cannot click on the caret and see the text in the objects box to the right. – LGS Dec 02 '20 at 20:26