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Update pictures.en.md #395

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Update pictures.en.md #395

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rosaguilar Nov 19, 2023
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17 changes: 17 additions & 0 deletions documentation/how-to/pictures.en.md
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Expand Up @@ -77,6 +77,23 @@ To enable geotagging in case your native OS camera does not support this functio
deactivated
on your mobile device
3. Completed! QField's own QML-based camera will now be utilized while taking pictures

## Saving Geotags (EXIF) automatically
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:material-monitor: Desktop preparation

Sometimes you might be interested in storing automatically Geotags such as the latitude, longitude, orientation, etc. This information is also known as EXIF tags.
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To store the EXIF information, follow these steps:

1. Add an attribute per EXIF tag in the table that contains the pictures.
2. In the pictures form, configure the default value of each attribute to the corresponding
*EXIF* expression [See QGIS EXIF function](https://docs.qgis.org/3.28/en/docs/user_manual/expressions/functions_list.html?highlight=exif#exif),
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and make sure *Apply on update* is activated.
4. The EXIF tags that QField can capture are listed in the QGIS documentation (link above).
However, this list might slightly varies depending on the mobile characteristics.
5. Capturing EXIF tags requires to access the full physical path of the picture. Be sure of reflecting this in the QGIS expression.
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For example, the expression * exif(@project_folder + '/' + "path", 'Exif.Image.Orientation')* retrieves the orientation of the picture stored in *path*.
7. Completed! QField's now capture and store the EXIF tags in the pictures table while taking pictures.

## Maximum picture size
:material-monitor: Desktop preparation
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