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Table of Contents

General behavior An example - rotating images A special case: JPEG files
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How Fotoware applications handle EXIF fields

EXIF data is metadata generated by cameras and scanners, such as shutter speed, aperture, GPS coordinates, image dimensions, and camera orientation.

17. August 2026

Elaine Foley

Table of Contents

General behavior An example - rotating images A special case: JPEG files

General behavior

Generally, Fotoware treats EXIF fields as read-only. This implies that the information can be read out and displayed to users. They can, for instance, be displayed (but not edited) in Fotostation by adding them to the Display Template shown below the thumbnail grid.

Some EXIF fields, however, are mapped to XMP and can therefore be edited. When a file containing EXIF data enters the Fotoware system, this is done automatically. In the default metadata configuration that ships with the Fotoware system, you will see that there are two XMP namespaces to which EXIF Fields are mapped. Those fields are:

Field name Mapped to XMP field number 
Original Date (also known as Camera date) #350
Digitized Date #351
ISO Speed Ratings #352
User Comment #353
Image Unique ID #354
GPS Latitude #355
GPS Longitude #356
Serial Number #357
GPS Processing Method #358

An example - rotating images

When a user rotates a large image file in the Fotoware system, there may already be an orientation tag in that file's EXIF data. Because the EXIF tag cannot be changed directly, Fotoware will create an XMP Orientation tag and store the rotation info there. XMP-compliant software (such as Photoshop) "knows" that the XMP orientation tag takes precedence over the EXIF data and will render the image shown according to how it's been rotated. An added benefit of this is that there's no heavy processing involved, even when rotating images that are several hundred megabytes in size.

A special case: JPEG files

When Fotoware applications encounter EXIF data in a JPEG file, some EXIF fields (Width, Height, Orientation, Thumbnail, GPS data, Camera Date, Color Space, Copyright, Byline, Image Description) are updated directly in the EXIF data. That's because the design of the JPEG format makes it possible to easily modify the EXIF data directly.

 
 
exif fields image metadata

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