Add a tag to jpeg using ExifTool

Question

I would like help with terminal syntax code please to add a tag to jpeg files using ExifTool. I want to add general notes to some old scanned jpeg pictures of my ancestors for my kids to be able to easily access in the future. I am using Linux Ubuntu 20.04 LTS

Answer 1

Try adding your notes to the Description tag. Your command would look like this:
exiftool -Description='Some notes' file.jpg

This command creates backup files. Add -overwrite_original to suppress the creation of backup files. Add -r to recurse into subdirectories.

You could also try hdwolf's jExiftoolGui for a GUI that uses exiftool behind the scenes. It will help deal with the confusing mess that is metadata. Even though it is no longer supported by the author, it should still work.