InDesign inserts a marker in text for items such as index entries, XML tags, and hyperlink text and anchors. These markers have no width and they don’t affect composition of text. However, you can select these markers and cut, copy, or delete them. InDesign uses the location of the marker to produce an accurate bookmark or page reference in the table of contents, index, and exported PDF files.
You can view all markers at once, or view hyperlink or tagged text markers only. You can also view markers in Story Editor, where they are larger and easier to identify.
When you select a word, all of its markers are also selected. Keep this in mind when you are cutting, copying, or deleting text.
A. Tagged text B. Index marker C. Hyperlink
You can also locate markers using different methods. For example, you can locate an index marker by choosing the Go To Selected Marker option in the Index panel menu.