When a document contains link annotations, the document structure will include a leaf node for the text and an additional node for the annotation. This leaf node will be displayed in the structure tree as a Link-OBJR node.
Link-OBJR nodes have a special attribute called Link description that you can configure in the Tag Properties Panel. See Editing tags.
![Screen capture showing a tag for a link annotation](https://resources.gonitro.com/dims4/default/e38934b/2147483647/strip/true/crop/347x380+0+0/resize/347x380!/format/jpg/quality/90/?url=http%3A%2F%2Fnitro-brightspot.s3.us-west-2.amazonaws.com%2F12%2F46%2Fe58626dd4744a15a65161bfc2dfb%2Flink-annotation.png)