djvu-viewer software package provides virtual package provided by evince, okular-extra-backends, zathura-djvu, atril, djview4, 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 djvu-viewer
djvu-viewer is installed in your system.
Make ensure the djvu-viewer package were installed using the commands given below,
$ sudo dpkg-query -l | grep djvu-viewer*
You will get with djvu-viewer package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Virtual packages |
| Package | djvu-viewer |
| Version | |
| Description | virtual package provided by evince, okular-extra-backends, zathura-djvu, atril, djview4 |
| Sub Section | Virtual |