Makernote Metadata is gone

[Maik Qualmann]

Hi Andrej,

Maker notes are now retained when saving a new image if ExifTool is used to 
write metadata.

The pre-release of digiKam-9.0.0 with this change will be available here soon 
(1-2 days): https://files.kde.org/digikam/

Maik

Am Montag, 2. Februar 2026, 20:05:10 Mitteleuropäische Normalzeit schrieben 
Sie:
> I tested a sample from the web. No problems at the moment. A possible cause
> is a 65535 Exif bytes issue. Please send me a sample via email where the
> problem occurs.
> 
> Maik
> 
> Am Montag, 2. Februar 2026, 18:22:11 Mitteleuropäische Normalzeit schrieb
> 
> Gilles Caulier:
> > Yes, please!
> > 
> > 
> > Le lun. 2 févr. 2026 à 17:18, Andrej Valencic <andrej.valencic at zoho.com> a
> > 
> > écrit :
> > > Hi Gilles,
> > > 
> > > I'm using ExifTool as the metadata backend.
> > > 
> > > Should I take the debug trace as well?
> > > 
> > > Regards,
> > > Andrej
> > > 
> > > 
> > > 
> > > On 02/02/2026 16:26, Gilles Caulier wrote:
> > > 
> > > Hi Andrej,
> > > 
> > > Which metadata backend did you use : Exiv2 or ExifTool?
> > > 
> > > If you use Exiv2, take a look to the debug trace from a console as
> > > explained here :
> > > 
> > > https://www.digikam.org/contribute/#freezes-and-other-run-time-issues
> > > 
> > > Reproduce the dysfunction and look if an Exiv2 error appears. If yes,
> > > report the problem to Exiv2 project:
> > > 
> > > https://github.com/Exiv2/exiv2/issues
> > > 
> > > You can try to use Exiftool backend instead, even if internally in
> > > digiKam
> > > we still use Exiv2 metadata containers to work. If the problem is
> > > relevant
> > > to writing in file, ExifTool will probably fix it. If the problem is
> > > relevant to the Exiv2 containers (aka Exif in this case : makernotes are
> > > hosted in Exif), well the dysfunction must be fixed in Exiv2.
> > > 
> > > Best regards
> > > 
> > > Gilles Caulier
> > > 
> > > Le lun. 2 févr. 2026 à 15:19, Andrej Valencic <andrej.valencic at zoho.com>
> > > 
> > > a écrit :
> > >> I have a new camera - Fujifilm X T30 III - and I found out that after
> > >> editing and saving pictures all the Makernote metadata are gone.
> > >> Included is an example of a picture before and after editing/saving.
> > >> Such things did not occur with my previous camera (Panasonic Lumix
> > >> TZ100).
> > >> 
> > >> Is this a feature or a bug? I really don't want to lose those metadata
> > >> information!
> > >> 
> > >> Best regards,
> > >> Andrej