How to delete all exif of DNG?

Question

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?

Stephen Marsh · Answer

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!

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