In this tutorial we’ll learn how to add custom paper to CUPS printer in Linux/MacOS, for example we’ll try to add A6 paper size. To get the right size we might need to do trial/error because not all the printer had the same size for A6, check the manufacture for guidances. For cups it is using pixel not MM/CM for measurement standard.
CUPS manages the paper configuration using PPD files, which should be available in /etc/cups/ppd/{PRINTER_NAME}. To check the printer name use the UI http://localhost:631/printers/ or command line lpstat -p
$ lpstat -p printer Ink_Tank_310 is idle. enabled since Sat 17 Jan 2025 03:05:42 PM
For my printer A6 paper is missing, because I need to print a lot of A6, I can’t live without it. Open the PDD file, then search for PageSize add the line after the first PageSize
*PageSize A6/A6: "<</cupsInteger0 24/PageSize [297.84 419.52]/ImagingBBox null>>setpagedevice"
After add the custom paper, restart the CUPS
sudo systemctl restart cupsTo verify, try to print the A6 from LibreOffice or any editor of your choices.
