| Name | Description |
| AnnotationsFilename | The filename and path of the file used for the thumbnail annotations (this could be the same as the image filename itself if the annotations are internal). If no file was used for annotation data, then this would be String.Empty. |
| Bitmap | Read-only property returning a System.Drawing.Bitmap object of the thumbnail image. Returns null if item is a directory. |
| CadLayoutCount | Read-only property returning the number of layouts contained in a CAD image file represented by the thumbnail item. |
| CadLayoutNumber | Read/Write property accessing the layout number in a CAD image file that the thumbnail item represents. |
| CellBackColor | Gets and sets the background color of the cell. |
| CellBorderColor | Gets and sets the border color of the cell. |
| Descriptor | Read/write property accessing the descriptor text of the thumbnail item. |
| ErrorDescription | Read-only property potentially containing an error descripton string that may be associated with the thumbnail item. |
| ErrorNumber | Read-only property potentially returning an error number that may be associated with the thumbnail item. This value is 0 for no error. |
| ExternalAnnotationType | The exernal annotation type if external annotation data is found, otherwise null. |
| Filename | Read/write property accessing the file name and path or URL of the thumbnail item. |
| HasAnnotations | Indicates if annotations of any type were discovered and used for this thumbnail. |
| InternalAnnotationType | The internal annotation type if internal annotation data is found, otherwise null. |
| MultiPage | Read-only property indicating whether the image file represented by the thumbnail item is a PDF, TIFF, ICO, Modca, or DCX image file that has been determined to contain multiple image pages. |
| Page | Read/Write property accessing the page number in a multi-page image file that the thumbnail item represents. |
| PageCount | Read-only property returning the number of image pages contained in the image file that the thumbnail item represents. Note that only PDF, TIFF, ICO, Modca, or DCX image files are able to have page counts greater than 1. |
| PdfPassword | Read/write property accessing the PDF password of the thumbnail item. |
| PdfRepair | Read/write property accessing the PDF repair flag of the thumbnail item. |
| Status | Read-only property returning the status of the thumbnail item. |
| Type | Read-only property returning the image type or directory folder type of the thumbnail item. |
| UserTag | Read/Write property accessing an object that contains additional or associated data for this object. |