I was in the process of importing many photos (>43K) and I noticed some were not rotated correctly. After adjusting the images directly, I used the synchronise option and it never reset the rotation value. After a bit of code diving, I found all I needed to do was change a single line of code in the current 13.8 branch:

In "admin/include/functions_metadata.php", change:

$update_fields = array('filesize', 'width', 'height');

(in the function get_sync_metadata_attributes) to:

$update_fields = array('filesize', 'width', 'height', 'rotation');

I should warn you that I don't know if this will won't work with IPTC attributes, but it does with EXIF attributes.

It solved my problem and I think it should be set in the latest branch since this is something I think most people would modify in their pictures.

Hi,

Oldwoman37 wrote:

Oh, I should also mention that you need to clear all image caches on piwigo as well as your browser to ensure the new images are shown properly.

when plugin activate your new tab on edit photo page with rotate