App for Nextcloud to print files using the CUPS/LPR printing ecosystem.
You need a working CUPS setup with a compatible printer set up as the default printer and the LPR daemon installed on your server.
On Debian, you can install the packages
cups-bsd and configure a default printer in CUPS (please refer to the CUPS documentation on how to do that). You can verify the installation with
lpstat -p and
lpstat -d after you configured CUPS correctly.
To install the app itself on your instance, simply navigate to »Apps« in your Nextcloud web interface, choose the category »Tools«, find the Printer app and enable it.
Just open the details view of the file (Sidebar). There should be a new tab called "Printer". Select a Orientation of your print and it will try to ececute the LPR (Line Printing Daemon) on the CLI to send the job to a printer configured in CUPS. Currently, only the printer set as default can be used for printing.
Possible orientations are "Landscape" and "Portrait". Further options will be added in the future.