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Linux

PrintingTools.Linux targets CUPS-backed printing environments and uses GTK or managed dialog fallbacks depending on what is available at runtime.

Supported environment

  • CUPS 2.3 or newer
  • Ubuntu, Fedora, Arch, and other distributions with lp and lpoptions
  • GTK-backed desktops or headless/service environments

Feature snapshot

Capability Status
Printer discovery via CUPS utilities Supported
Capability discovery via lpoptions Supported
GTK dialog integration Supported when available
Managed dialog fallback Supported
Portal-aware execution Supported via environment variables
Managed PDF export plus lp submission Supported

Runtime notes

  • Export GTK_USE_PORTAL=1 and GIO_USE_PORTALS=1 for Flatpak and Snap-style environments.
  • When no display server is available, the adapter stays functional for non-interactive export workflows.
  • CUPS stderr is surfaced through diagnostics and should be preserved in logs.