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With RawTherapee 4.2, I want to edit the image and export it as jpg file, but without touching the original RAW file. Is it possible? At the moment I copy the RAW, edit it and put it to the queue to create a jpeg. Then i delete the copied raw file.

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An export doesn't change the original file. Therefore it's named Export. To check this

  1. Create a copy of your RAW file
  2. Open RawTherapee and export as JPG
  3. Check the modification type of your copied RAW file via stat

    Example

    I create a new file named foo via touch and do some things. Check the output of the command stat, especially Access, Modify and Change to become an idea

    % touch foo
    % stat foo
      File: ‘foo’
      Size: 0           Blocks: 16         IO Block: 4096   regular empty file
    Device: 2eh/46d Inode: 393375      Links: 1
    Access: (0664/-rw-rw-r--)  Uid: ( 1000/aboettger)   Gid: ( 1000/aboettger)
    Access: 2015-08-26 14:09:33.747255155 +0200
    Modify: 2015-08-26 14:09:33.747255155 +0200
    Change: 2015-08-26 14:09:33.747255155 +0200
     Birth: -
    
    % echo foobar > foo
    % stat foo
      File: ‘foo’
      Size: 7           Blocks: 24         IO Block: 4096   regular file
    Device: 2eh/46d Inode: 393375      Links: 1
    Access: (0664/-rw-rw-r--)  Uid: ( 1000/aboettger)   Gid: ( 1000/aboettger)
    Access: 2015-08-26 14:09:33.747255155 +0200
    Modify: 2015-08-26 14:09:41.799215458 +0200
    Change: 2015-08-26 14:09:41.799215458 +0200
     Birth: -
    
    % less foo
    % stat foo
      File: ‘foo’
      Size: 7           Blocks: 24         IO Block: 4096   regular file
    Device: 2eh/46d Inode: 393375      Links: 1
    Access: (0664/-rw-rw-r--)  Uid: ( 1000/aboettger)   Gid: ( 1000/aboettger)
    Access: 2015-08-26 14:09:46.627191656 +0200
    Modify: 2015-08-26 14:09:41.799215458 +0200
    Change: 2015-08-26 14:09:41.799215458 +0200
     Birth: -
    

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