If I understand well you copy/paste the watermark from the 'first' iamge
into the other ones. This changes your xmp file when you export your
images. I also add a watermark to some of my images. I created a style
with only the watermark inside. It does not matter if I append or
replace this style during the export, the xmp file is unchanged. I use
this with cli-darktable and with the darktable export. Perhaps you could
try to use a style to add your watermark to the pictures. This might be
a bit more work but it saves you a lot of time and effort in case
something goes wrong.
Regards,
Msrco
Op 20/03/2022 om 00:20 schreef Andrew Greig:
Hi All,
I have read the manual on xmp files, and scrolled through the emails
around my issues of over-written xmp files. But I have not found a
clear process to follow. Last night after exporting a set of 259
images at full -size jpg I added a watermark using the selective copy
and paste but when I looked at the results of copying a single image
with a watermark added, the resulting 258 images went dark (back to an
out of camera condition). I had this happen before and I checked the
"Overwrite" and "Append" switches and found that somehow it had
changed from Append to Overwrite. Prior to my former disaster,
through several versions of Darktable I had never altered the Append
to Overwrite, never given it a thought. But now, twice in a couple of
months something, maybe a power failure overnight , has seen DT choose
"Overwrite". So when selecting just the watermark to copy to the 258
files, with the setting at "overwrite" everything els has been zeroed
and the watermark remains. I hate that overwrite button, can't imagine
who would use it, maybe we could lose it . But I digress.
I have been told that I can recover the xmp files from my exported
(and correct) jpgs. So I need to discover the process. I imagine that
I would need to load my jpg files into Darktable instead of my RAW
files with their ovewritten xmp files. But what is next, please?
--
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