#6626 wired the limit modals for direct browser→API calls, but a policy's tool calls run server-side, so their 402 entitlement block never reaches the apiClient interceptor — the run just showed up "failed" with no modal. Bridge it: BE (proprietary, billing-layer-agnostic): - PolicyEngine.runToCompletion catches a downstream RestClientResponseException; on a 401/402 it regex-extracts the body's `error` sentinel + `subscribed` flag and surfaces them on the run (PolicyRun.errorCode/errorSubscribed → PolicyRunView), instead of only a generic failure string. The code is passed through, not interpreted, so proprietary stays free of saas coupling. FE: - usePolicyAutoRun: when a polled run finishes with an entitlement errorCode, broadcast POLICY_LIMIT_REACHED_EVENT (with `subscribed`), deduped per run so a folder-watch burst opens the modal once. The proprietary hook can't import the saas modal API, so it bridges via a window event. - UsageLimitModalHost (saas): listens for that event and opens the spend-cap (subscribed) or free-limit (free) modal — the same modals direct calls use. Tests: PolicyEngineTest asserts a downstream 402 surfaces errorCode + errorSubscribed on the run. proprietary compileJava, PolicyEngineTest, eslint, tsc (proprietary + saas), and policies/interceptor vitest all green.
Stirling PDF - The Open-Source PDF Platform
Stirling PDF is a powerful, open-source PDF editing platform. Run it as a personal desktop app, in the browser, or deploy it on your own servers with a private API. Edit, sign, redact, convert, and automate PDFs without sending documents to external services.
Key Capabilities
- Everywhere you work - Desktop client, browser UI, and self-hosted server with a private API.
- 50+ PDF tools - Edit, merge, split, sign, redact, convert, OCR, compress, and more.
- Automation & workflows - No-code pipelines direct in UI with APIs to process millions of PDFs.
- Enterprise‑grade - SSO, auditing, and flexible on‑prem deployments.
- Developer platform - REST APIs available for nearly all tools to integrate into your existing systems.
- Global UI - Interface available in 40+ languages.
For a full feature list, see the docs: https://docs.stirlingpdf.com
Quick Start
docker run -p 8080:8080 docker.stirlingpdf.com/stirlingtools/stirling-pdf
Then open: http://localhost:8080
For full installation options (including desktop and Kubernetes), see our Documentation Guide.
Resources
Support
- Community Discord
- Bug Reports: Github issues
Contributing
We welcome contributions! Please see CONTRIBUTING.md for guidelines.
This project uses Task as a unified command runner for all build, dev, and test commands. Run task install to get started, or see the Developer Guide for full details.
For adding translations, see the Translation Guide.
License
Stirling PDF is open-core. See LICENSE for details.

