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A
Anonymous
August 8, 2022
Question

How to delete all exif of DNG?

  • August 8, 2022
  • 2 replies
  • 2261 views

I have digitized film negatives and converted the raw files to DNG. Now I want remove all metadata of those files. And put the film camera model to metadata. Is there anyway to delete exif?

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2 replies

Stephen Marsh
Community Expert
Stephen MarshCommunity Expert
Community Expert
August 9, 2022

Or one can use ExifTool, which supports a wide range of file formats and metadata properties - including read/write for DNG:

 

https://exiftool.org/#supported

 

For only EXIF (camera) related data:

 

exiftool -exif:all= 'path to/file/or folder'

 

For all metadata, but not the ICC profile:

 

exiftool -all= -CommonIFD0= --icc_profile:all 'path to/file/or folder'

 

Note: Windows OS would use " double straight quotes. These commands will dupe the input file and rename the original file as a backup. To overwrite the originals without a backup, add the following argument with the others:

 

-overwrite_original

 

Note: Always work on copies while you are learning!

    A
    Anonymous
    August 9, 2022

    I have no any idea how to use Exif Tool... I dont understand those commands. Is there any graphical softwares?

    Stephen Marsh
    Community Expert
    Stephen MarshCommunity Expert
    Community Expert
    August 9, 2022
    @22130536 wrote:

    I have no any idea how to use Exif Tool... I dont understand those commands. Is there any graphical softwares?

     

    That is why there are tutorials that can be found via a search.

     

    All you need to do is install ExifTool on the Mac or PC.

     

    Then launch a command window – Terminal.app on Mac or CMD.exe on Windows.

     

    Paste in the code without the path to the file/s or folder, ensuring a space separator at the end...

     

    Then drag in the file/s or folder into the command window and press return/enter.

     

    Screenshot:

     

     

    There are various GUI's, but even then, for many use cases one has to enter the code anyway as not all features are offered in the GUI, so all they end up doing is providing a crutch for selecting files.

    gary_sc
    Community Expert
    gary_scCommunity Expert
    Community Expert
    August 8, 2022

    I have not used this, but it seems pretty straightforward. Plus, you can do this in bulk

     

    https://apps.apple.com/app/id784466108

     

    This leads you to both a Mac and a PC version

    A
    Anonymous
    August 9, 2022

    Exif Purge doesn't support DNG files. Only JPEG.

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