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We have about one gigabyte sized collection of family photos. For each photo we would like to specify rotation angle (90 DEGREES or -90 DEGREES) and a one-line comment.

There are individual image viewers like Viewnior and Eye of Gnome, but I think they do not have a field for comments. There is KPhotoViewer, KODI (xmbc), but I haven't seen a field for comments there, either. For either of them I do not know how they implement rotation, via metadata or by modifying the bytes within the image area.

I am looking for a free software (libre, not necessarily gratis) solution that works on Debian GNU/Linux.

migrated from superuser.com Dec 29 '18 at 10:22

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What about geeqie and its dependencies?

You can rotate with the [ and ] keys, and the paths of changed files will be saved in a list which you can access via the status bar or CTRL-S. You must also write the rotated image to disk with Edit/Orientation/Apply the orientation to image content

Viewing all Exif Data is certainly possible CTRL+E - opening the EXIF Window.

Editing Metadata Data is possible with CTRL-K. This opens the Info Sidebar which has a "Comment" field at the bottom of the page, but that is not an EXIF tag, apparently. (Editing is not possible with the Exif Window).

What is the tag that you want to edit? Exif.Image.Description?

  • Thank you knb for sharing this information. To answer your questions, 1) I don't want to rotate the bitmap because that loses image quality, instead specify rotation in EXIF metadata or a file located in the same directory as the image? 2) Yes I would like to modify the image description. – Svetlana T. Dec 29 '18 at 23:21
  • There is a plugin for geeqie that does lossless JPG rotation. -- Try the CTRL-S and Edit/Orientation... operations yourself to what see what exactly they do to an image. -- There are other tags which also candidates for new content e.g. Exif.Image.Title – knb Dec 30 '18 at 12:22
  • Thank you for this explanation knb. I don't see image description in the metadata dialog. – Svetlana T. Jan 1 at 22:18

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