Comments in the annotation window are cut off when they're longer

Hi,

Thanks for sharing the screenshot.

In this scenario, when comments are too long, the pop-up comment window automatically shows a scroller to read the entire content mentioned in the comment window.

See the screenshot: 

• You may check the commenting preferences under Acrobat>Edit>Preferences [Ctrl+K]> Commenting and see if there's an option that's supposed to be reviewed, but not?  
• If it looks good, then check with a different file. 
• Or close the document, Adobe Reader completely, and restart it.

Let us know the result. 

Thanks,

Akanchha