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I have around 2500 photos from different devices, most of them had synchronized timestamps and properly saved metadata. One device had no option to save a timestamp and metadata (even the filenames are random). I need free software that allows me to select images from a particular day and save some custom metadata to them (e.g., only the Taken date). It would nice if it was GUI software, but console programs are also ok. I can use Linux or Windows.

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  • \$\begingroup\$ I don't understand what this means: "select some portions of images and save to them some metadata". \$\endgroup\$
    – xiota
    Commented Aug 7, 2018 at 9:30
  • \$\begingroup\$ @xiota That means that I will choose in eg 20 photos that I remember was taken in one day and save to them Date taken or Date created to this day. \$\endgroup\$
    – ketrab
    Commented Aug 7, 2018 at 9:34

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Since you mention files coming from different devices, it would probably be useful to sort files into folders based on the device from which they came.

exiftool '-Directory<${Make;} ${Model;}' -ext jpg .

You can then move the files you want to alter to a different folder to further process with exiftool. For instance, you might want to rename them according to date and time, then retag based on file name. See Writing missing/incorrect Date Tags based on FileName in ExifTool?

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    \$\begingroup\$ This can be done with a single exiftool command for all files, rather than running exiftool three times for each file (see Common Mistake #3): exiftool '-Directory<${Make;} ${Model;}' /Dir/To/Process This command will also correct for characters like slashes that may create unwanted subdirectories. Add -r to recurse into subdirectories. \$\endgroup\$
    – StarGeek
    Commented Aug 7, 2018 at 17:56

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