The sticky note text does appear when I right-click and select "Open Pop-Up Note." However, the text appears only as many boxes when I roll my cursor over the note.
Any suggestions? I've been working on this same document for months, and the problem only appeared today. This problem shows up on most of the sticky notes, but not all.
This might be because of the existing version of Adobe Reader you are working on currently. You may check whether you have the latest patch installed or not? Open Reader DC>Help>Check for update
Try to download the latest update for Acrobat DC from here - Acrobat Help | Release notes | Acrobat DC, Acrobat Reader DC | Update .
After downloading the update, kindly restart the computer and then open the document in Acrobat .
Also, try adding annotation to any other pdf file and see if that has a similar behavior of missing text in sticky notes or not?
Let us know if it worked.