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I need to remove the orientation "flag" of a batch of images (jpeg images), without changing the displayed orientation of the images.

Trying to make it clear : if I have an image in portrait orientation with an orientation flag, I want it to keep this portrait orientation, but get rid of the orientation flag, as it seems some application are not able to handle it correctly. It's a kind of fusionning the image with its orientation flag.

I guess this means recompressing the image, but that is not a problem.

I tried to do it with automator, but was not able to do it. Is it possible ?

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Can't offer an Automator script but Jhead which is a command line Jpeg header manipulation tool.

  1. Download jhead
  2. Start Terminal.app and move the file to /usr/local/bin/ with

    sudo mv ~/Downloads/jhead /usr/local/bin/jhead
    

    and enter your password

  3. Make it executable sudo chmod +x /usr/local/bin/jhead
  4. Entering jhead -v -norot ~/Pictures/folder/subfolder/*.jpg should do the job and clears the Exif header rotation tag without altering the image.

Here is the manual. Make a test with some pictures in a subfolder before you rot your original pictures.

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