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XMP Sidecar and JPEG

Thomas Schneider

Hi,

I am a bit confused about the metadata-handling of CO1 (14.4.1) regarding an external XMP sidecarfile for a JPEG file:

When I edit the metadata of a JPEG-File CO1 writes this change in an external XMP sidecarfile.
With the exception of Adobe, hardly any other image editing program does this.
It also contradicts the specifications of XMP:

The XMP standard requires JPEG files to have embedded XMP metadata. Same as with PNG, GIF, PDF, PSD, TIFF, DNG.
XMP in sidecar files is designed to be used for for RAW files and other file formats.

How can I get CO1 to write the metadata of an existing JPEG into this file and not into an extra XMP sidecar (When exporting a JPEG file, CO1 also does it correctly)?

Thanks for your answers

Greetings

Thomas

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Comments

4 comments

Date Votes
  • BeO
    • Edited
    Top Commenter

    To my knowledge you cannot. C1 never alters "input" files, which is usually raw but also tiff, jpg etc.

    C1 will write metadata into the output files, so imported jpgs when exported, C1 will write a new file (I know that is not advisable with jpgs) and embed the metadata, if you specify this in the export recipe.

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  • Permanently deleted user
    • Edited

    How can I get CO1 to write the metadata of an existing JPEG into this file and not into an extra XMP sidecar

    To reiterate what BeO said:  you can't.

    The Capture One philosophy is original files -- raw, jpeg, tiff, dng, whatever -- are never updated.  They can be read but never written.

    Edit: Pavel and I were responding at the same time.  I guess you can export over the input file.  Would anyone actually do that?

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  • Thomas Schneider

    thank you for your answers, that clarifies a lot.

    It was just noticeable that with the update to 14.4.1 CO1 automatically creates an XMP sidecar for every JPEG. This was not the case before. (Auto sync is set to Full). I can avoid this if I leave Auto Sync XMP sidecar option on Load.

    Thomas

     

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  • April

    Hi Thomas,

    It happens exactly because it is set to Full Sync. I will recommend you to set it to None and do it manually when needed, as you probably will not need to have that full sync activity going on in the background constantly. if you need to write your CO metadata to XMP files for external use (choose Sync on right click on thumbnail(s)) or load if you would like to retrieve the metadata added to the XMP files from another application.
    https://support.captureone.com/hc/en-us/articles/360002544898-Metadata-in-XMP-sidecar-files

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