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Feature #8421

Export: option to exclude metadata

Added by Simon Spannagel over 7 years ago. Updated 2 months ago.

Status:
Triaged
Priority:
Low
Assignee:
-
Category:
General
Target version:
Start date:
Due date:
% Done:

20%

Affected Version:
git master branch
System:
all
bitness:
64-bit
hardware architecture:
amd64/x86

Description

It would be nice to have the option not to write the metadata into an exported file. Sometimes one doesn't want to give away all the exif informations or even personal tags.

You could implement a checkbox to choose wheter they are exported or not.


Related issues

Related to darktable - Feature #8759: EXIF module Triaged 06/06/2012
Duplicated by darktable - Feature #8950: Exclude EXIF, XMP, and color profile upon JPG export Duplicate 09/23/2012

History

#1 Updated by Tobias Ellinghaus almost 6 years ago

  • Status changed from New to Triaged
  • % Done changed from 0 to 20
As Pascal proposed that option could/should have different levels:
  • all metadata
  • no personal metadata (no tags, title, author, location, ... but still things like camera, lens, aperture, ...)
  • no metadata

#2 Updated by Jérémy Rosen almost 6 years ago

that might be a task for lua, with a post-export plugin...

if it's considered a common enough feature for mainline, ok,

if not, i'll write it down on my lua use-case list... probably through a command line call to exiv2 on export to filter....

#3 Updated by Tobias Ellinghaus almost 6 years ago

I guess that should go into the core.

#4 Updated by Dmitry Pashkevich about 4 years ago

Maybe some 3-4 basic options in the core, e.g:

  • [ ] strip all metadata
  • [ ] strip personal (tags, title, author, location)
  • [ ] strip camera (camera, lens, aperture, exposure, iso, focal length, ...)
  • [ ] strip darktable settings

with a more fine-grained metadata export control available as a plugin? I would use this Lightroom plugin as a reference.

Personally, my default export settings would be: all metadata except darktable's settings. I'm OK about sharing my camera settings but would rather not share the development process by default. Also, they add some extra weight to the file.

#5 Updated by Ari El over 1 year ago

Simon Spannagel wrote:

It would be nice to have the option not to write the metadata into an exported file. Sometimes one doesn't want to give away all the exif informations or even personal tags.

You could implement a checkbox to choose wheter they are exported or not.

Please also include an option to exclude copying the Sidecar file when the the output format is "Copy". otherwise a ton of metadata makes it into the Export folder which is not expected

Common use case where the XMPs are undesirable when exporting: Culling > Development with darktable then exporting to a selected images folder for upload to somewhere (say home server, say social media etc). Sidecards are not needed (and better removed) from the Export folder

For reference, AfterShotPro allows sidecar exclusion and also gives control on what metadata gets embedded in the output file

#6 Updated by Tobias Ellinghaus over 1 year ago

  • Affected Version set to git master branch
  • System set to all

That doesn't make any sense. For one, you should use the "copy" button instead of export. Second, developing your images in dt and then uploading the raw files without the XMPs means you backup your images but not the processings.

#7 Updated by Ari El over 1 year ago

Tobias Ellinghaus wrote:

That doesn't make any sense. For one, you should use the "copy" button instead of export. Second, developing your images in dt and then uploading the raw files without the XMPs means you backup your images but not the processings.

Well perhaps my comment was confusing. I'm not trying to do a backup, this is about Exporting the result of the culling for folder sharing/displaying/uploading/etc, and controlling/removing metadata from the results. "Export" does support Copy as Output Format for a reason: I guess it's many of us using this since a) it's there already :), b) AFP supports this as well as does lightroom. For now I run a post-Export scrubbing/cleanup script on the Exported folder that removes unwanted metadata (embedded metadata and xmps/sidecars that slip through)

For Backups, I just do full source directory rsyncs including sidecars and everything else :)

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