Open Source Components

This service uses Barcode Writer in Pure PostScript (BWIPP),
licensed under the MIT License.

BWIPP source code:
https://github.com/bwipp/postscriptbarcode

This service includes the gs_worker program, licensed under the
GNU Affero General Public License version 3 (AGPL-3.0).

The source code for gs_worker is available at:
https://github.com/terryburtonconsulting/gs_worker

gs_worker links against Ghostscript, which is also licensed under
the GNU Affero General Public License version 3.

Ghostscript source code:
https://ghostscript.com/releases/

gs_worker includes the GSAPI Perl XS module, licensed under the
GNU General Public License version 2.0 or later (GPL-2.0+).