[Digikam-users] Digikam-users Digest, Vol 30, Issue 4

[Geoff King]

Hello,
I can confirm the problem.
I'm using 0.9.3-beta3 and exiv2 0.15

This looks like it might be related to something I reported last
month, but found a workaround for my situation. See:
http://bugs.kde.org/show_bug.cgi?id=150801

Question to developers: Could the PNG Preview tag be causing this
issue also?  How do we stop the creation of this tag when saving as a
PNG?

You should probably report this as a bug.

Geoff

>
> Message: 1
> Date: Sat, 03 Nov 2007 15:20:01 +0100
> From: Pawe? Marciniak <pave at o2.pl>
> Subject: [Digikam-users] Comments in png files
> To: digikam-users at kde.org
> Message-ID: <fgi02k$t1g$1 at ger.gmane.org>
> Content-Type: text/plain; charset=utf-8
>
> Hi there,
>
> After Gilles' post (around June) recommending storing images in png format,
> I switched to it entirely. I collected my photos, added captions etc. Now I
> want to upload them to a web gallery, which only accepts jpegs. However,
> after a batch conversion to jpeg, some of the photos lost their metadata
> completely. During the conversion, a dialog is shown for each photo,
> saying "Cannot run properly 'convert' program from 'ImageMagick' package"
> and the console displays:
> digikam: WARNING: Convert exit (0)
>
> When investigating this issue I found out that when I add a caption in
> digiKam, it doesn't throw any error, but the console says:
> Cannot save metadata using Exiv2  (Setting Image comment in PNG images is
> not supported). The added caption is shown by digiKam, but maybe it is
> stored only in digiKam database?
>
> When converting manually with convert, no error is raised, but when I try to
> view the converted image in digiKam, no metadata is shown at all.
>
> I'm using digiKam 0.9.3-beta1 with Exiv2 0.14 and KExiv2 0.1.6.
>
> Does anyone have an idea on how I can convert hundreds my photos to jpeg and
> preserve all the metadata and captions I spent so much time adding?
>
> Thanks in advance,
> Pawe?
>
>
>