## JFIF Tags

The following information is extracted from the JPEG JFIF header. See http://www.jpeg.org/public/jfif.pdf for the JFIF 1.02 specification.

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | JFIFVersion | N |
> 2 | ResolutionUnit | int8u | 0 = None 1 = inches 2 = cm
> 3 | XResolution | int16u |
> 5 | YResolution | int16u |

## JFIF Extension Tags

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0x0010 | ThumbnailImage | N |

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Jan 25, 2011

<-- ExifTool Tag Names