How to fix “You do not have the required privileges to access the specified folder” error when scanning -Canon IJ Scan Utility (macOS)

If you receive an error similar to this when attempting to scan with the IJ Scan Utility, or when attempting to specify a destination folder for saving images:

This may be caused by the permissions for your destination folder being set to Read only.  Follow the steps below to change the permissions for the destination folder.

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