# HighlightStyle Enum

> Specifies the visual effect used when a link annotation is activated (clicked).

- Product: Adobe PDF Library 21
- Language: Java
- Version: APDFL21.0.0PlusP1f
- HTML page: https://docs.datalogics.com/apdfl21/Java/APDFL21.0.0PlusP1f/enum/HighlightStyle
- Version index: https://docs.datalogics.com/apdfl21/Java/APDFL21.0.0PlusP1f/llms.txt

**Namespace:** `com::datalogics::PDFL`

## Description

Specifies the visual effect used when a link annotation is activated (clicked).

## Values

- `INVERT`: Highlight by inverting the contents of the rectangle
- `NONE`: Do not highlight this link
- `OUTLINE`: Highlight by inverting the border
- `PUSH`: Display the annotation as if it were being pushed below the page surface (like a button)
- `TOGGLE`: Toggle: synonym for Push