When marking Blackboard tests/assignments it is recommend that you annotate using the in-built annotation tools in My Dundee. If you do encounter any issues with this, please raise a ticket via Help4u.
If you need to mark offline, we recommend staff use Adobe Acrobat Reader to annotate/create comments. Students should also use the some program to view the marked work. This is due to issues with comments becoming truncated or unreadable if alternative methods, such as browser or PDF preview, are used to annotate or view the annotated work.
Adobe Acrobat Reader is available from apps anywhere, or alternatively you can download directly from Adobe for free.