| Name | Type | Value | Description |
|---|---|---|---|
| TEXT | String | 'Text' | Text annotation type. |
| CIRCLE | String | 'Circle' | Circle annotation type. |
| POLYGON | String | 'Polygon' | Polygon annotation type. |
| POLY_LINE | String | 'PolyLine' | Plyline annotation type. |
| LINE | String | 'Line' | Line annotation type. |
| SQUARE | String | 'Square' | Square annotatotion type. |
| FREE_TEXT | String | 'FreeText' | Free text annotation type. |
| HIGHLIGHT | String | 'Highlight' | Highlight annotation type. |
| UNDERLINE | String | 'Underline' | Underline annotation type. |
| SQUIGGLY | String | 'Squiggly' | Squiggle annotation type. |
| STRIKE_OUT | String | 'StrikeOut' | Strikeout annotation type. |
| CARET | String | 'Caret' | Caret annotation type. |
| INK | String | 'Ink' | Ink annotation type. |
| LINK | String | 'Link' | Link annotation type. |
| POPUP | String | 'Popup' | Popup annotation type. |
| FILE_ATTACHMENT | String | 'FileAttachment' | File attachment annotation type. |
| SOUND | String | 'Sound' | Sound annotation type. |
| MOVIE | String | 'Movie' | Movie annotation type. |
| SCREEN | String | 'Screen' | Screen annotation type. |
| WIDGET | String | 'Widget' | Widget annotation type. |
| WATERMARK | String | 'Watermark' | Watermark annotation type. |
| TRAP_NET | String | 'TrapNet' | Trap network annotation type. |
| PRINTER_MARK | String | 'PrinterMark' | Printer mark annotation type. |
| REDACTION | String | 'Redaction' | Redaction annotation type. |
| STAMP | String | 'Stamp' | Rubber stamp annotation type. |
| RICH_MEDIA | String | 'RichMedia' | Rich media annotation type |
| UNKNOWN | String | 'Unknown' | Unknown annotation. |
| PDF3_D | String | 'PDF3D' |