exiftags software package provides utility to read Exif tags from a digital camera JPEG file, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install exiftags
exiftags is installed in your system.
Make ensure the exiftags package were installed using the commands given below,
$ sudo dpkg-query -l | grep exiftags *
You will get with exiftags package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Graphics |
| Package | exiftags |
| Version | 1.01-6+b1 [amd64, arm64, armel |
| Description | utility to read Exif tags from a digital camera JPEG file |
| Sub Section | Graphics |