AnsweredAssumed Answered

Free text annotations in Canvas feedback does not conform to PDF 1.7 specs

Question asked by Haochen Tong on Nov 2, 2018
Latest reply on Apr 19, 2019 by

Hello Canvas Team,


I am a student primarily using Linux, and I recently found that the PDF downloaded from the feedback viewer loses all free-text annotations in my viewer (mostly poppler based). I have raised the issue with poppler at Cannot display free text annotation (#656) · Issues · poppler / poppler · GitLab and it seems that these annotations in the PDF generated by Canvas are missing a "DA" tag, which is required according to PDF spec 1.7.


I would like to have this problem fixed, to give us students the same experience with non-proprietary software and more freedom of our choices. But I also understand that it may not be that easy.


I'm looking forward to your opinions.