APP12 Tags

## APP12 PictureInfo Tags

The JPEG APP12 "Picture Info" segment was used by some older cameras, and contains ASCII-based meta information. Below are some tags which have been observed Agfa and Polaroid images, however ExifTool will extract information from any tags found in this segment.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'Aperture' | Aperture | N |
> 'ColorMode' | ColorMode | N |
> 'ConTake' | ConTake | N |
> 'ExpBias' | ExposureCompensation | N |
> 'FNumber' | FNumber | N |
> 'FWare' | FirmwareVersion | N |
> 'Flash' | Flash | N | 0 = Off 1 = On
> 'FocusMode' | FocusMode | N |
> 'FocusPos' | FocusPos | N |
> 'ID' | ID | N |
> 'ImageSize' | ImageSize | N |
> 'LightS' | LightS | N |
> 'Macro' | Macro | N | 0 = Off 1 = On
> 'Protect' | Protect | N |
> 'Quality' | Quality | N |
> 'Resolution' | Resolution | N |
> 'Serial#' | SerialNumber | N |
> 'Shutter' | ExposureTime | N |
> 'StrobeTime' | StrobeTime | N |
> 'TimeDate' | DateTimeOriginal | N |
> 'Type' | CameraType | N |
> 'Version' | Version | N |
> 'Ytarget' | YTarget | N |
> 'Zoom' | Zoom | N |
> 'ZoomPos' | ZoomPos | N |
> 'shtr' | ExposureTime | N |
> 'ylevel' | YLevel | N |

## APP12 Ducky Tags

Photoshop uses the JPEG APP12 "Ducky" segment to store some information in "Save for Web" images.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0x0001 | Quality | int32u/ |
> 0x0002 | Comment | string/ |
> 0x0003 | Copyright | string/ |

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Jan 22, 2011

<-- ExifTool Tag Names