The mime subtype for a graphic, multimedia object, or piece of supplementary material
The source for this attribute’s values is the Internet Assigned Numbers Authority (IANA 2003). All permissible non-specific vendor values for mimetype “image” at the time if this DTD’s construction were included.
| Value | Meaning |
|---|---|
| cgm | Computer Graphics Metafile |
| g3fax | G3 Facsimile |
| gif | CompuServe Graphic Interchange Format |
| ief | Image Exchange Format |
| jpeg | Joint Photographic Experts Group raster |
| naplps | North American Presentation Layer Protocol Syntax |
| png | Portable Network Graphics |
| prs.btif | Personal Tree Bank Image TIFF |
| prs.pti | Personal Tree PTI |
| t38 | Real-time Facsimile |
| tiff | Tag Image File Format |
| tiff-fx | Tag Image File Format Fax eXtended |
| Restriction: This attribute may be specified if the element is used. | |
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | A specific mime subtype (November 2003 list) |
| Restriction: This attribute may be specified if the element is used. | |