Subprocessors
The external service providers that may process data to operate QuietPDF.
This register lists the main third-party service providers that support hosting, storage, authentication, billing, and optional AI workflows.
Core infrastructure
Cloudflare provides edge services and Cloudflare R2 is expected to be used for object storage in production.
PostgreSQL is expected to be used for the primary relational database in production.
Product integrations
Google OAuth may process sign-in data when Google login is used.
Lemon Squeezy may process billing and subscription data for paid plans.
OpenAI may process document-derived inputs only when AI workflows are explicitly used and configured.
Updates
This register should be reviewed and updated whenever a production-facing vendor changes, especially for storage, database, logging, analytics, or support tooling.