ImageGear ART can convert ART marks to PDF annotations, and PDF annotations to ART marks, giving the user the ability to edit PDF annotations using the same ImageGear ART GUI.
The following table lists all the ART marks that can be converted to PDF annotations and describes how the marks are being converted:
| ART Marks | PDF Annotations |
| Ellipse | Circle |
| Hot Spot | Link |
| Image (vector) | 3D |
| Legacy Arrow | Line |
| Legacy Attach-A-Note | FreeText |
| Legacy Filled Ellipse | Circle |
| Legacy Filled Polygon | Polygon |
| Legacy Filled Rectangle | Square |
| Legacy Highlighter | Square |
| Legacy Hollow Ellipse | Circle |
| Legacy Hollow Polygon | Polygon |
| Legacy Hollow Rectangle | Square |
| Legacy Redaction | Square |
| Legacy Text From File | FreeText |
| Legacy Text Stamp | FreeText |
| Legacy Typed Text | FreeText |
| Line | Line |
| Polygon | Polygon |
| Polyline and Freehand Polyline | PolyLine |
| Rectangle | Square |
| Rich Text (RTF) | FreeText |
| Text | FreeText |
The following PDF annotations can be converted to ART marks:
| PDF Annotations | ART Marks |
| 3D | Image (vector) |
| Circle | Ellipse |
| FreeText (RTF style text) | Rich Text |
| FreeText (simple style text) | Text |
| Line | Line |
| Link | Hot Spot |
| Polygon | Polygon |
| PolyLine | Polyline |
| Square | Rectangle |