ExifTool does not need to be installed to run. Just download and extract either the full Perl distribution on Mac/Linux, or the Windows EXE version on Windows, ...
ExifTool is a platform-independent Perl library plus a command-line application for reading, writing and editing meta information in a wide variety of files.
Download the Image-ExifTool distribution from the ExifTool home page · Extract the ExifTool files from the archive. · Copy exiftool and the lib directory ...
Image::ExifTool is a customizable set of Perl modules plus a full-featured command-line application called exiftool for reading and writing meta information in ...