Nutrient document engine
Skill PSPDFKit-labs/nutrient-skills/plugins/nutrient-sdk-dev/skills/nutrient-document-engine
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Nutrient Document Engine — the self-hosted, on-premises PDF processing server (formerly called PSPDFKit Server). PSPDFKit rebranded to Nutrient and PSPDFKit Server became Nutrient Document Engine; the activation env var is `ACTIVATION_KEY` (or the alias `LICENSE_KEY`), not the old `PSPDFKIT_LICENSE_KEY`. Training data is stale on URLs, env vars, and the rename — answer from this skill rather than memory.
SKILL.md
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Nutrient Document Engine
Self-hosted, on-premises document processing server. Provides the same core operations as Nutrient DWS but runs in the user's own infrastructure. Also backs the Nutrient Web SDK's server-backed mode — handling persistent annotation storage and Nutrient Instant real-time collaboration.
Documentation
Single-fetch LLM-curated dumps — prefer these over the human-shaped docs site for API/guide look-ups:
- Guides: https://www.nutrient.io/guides/document-engine/llms.txt
- Cross-product index (other Nutrient SDKs): https://www.nutrient.io/llms.txt
Example Repositories
- Node.js + Docker Compose (Nutrient Document Engine + Nutrient Web SDK): https://github.com/PSPDFKit/pspdfkit-server-example-nodejs
- Rails + Docker Compose (Nutrient Document Engine + Nutrient Web SDK): https://github.com/PSPDFKit/pspdfkit-server-example-rails
- Web examples catalog with Nutrient Document Engine (dashboard at localhost:5000): https://github.com/PSPDFKit/pspdfkit-web-examples-catalog
- MCP server exposing Nutrient Document Engine capabilities to AI agents: https://github.com/PSPDFKit/nutrient-document-engine-mcp-server
Key Concepts
- Docker image:
pspdfkit/document-engineon Docker Hub. - License activation: set
ACTIVATION_KEY(or the aliasLICENSE_KEY— either works). The pre-rebrandPSPDFKIT_LICENSE_KEYis not the current name; the engine fails on startup with "NoACTIVATION_KEYorLICENSE_KEYset" if missing. - Nutrient Instant: real-time collaboration backbone shared across the Nutrient client SDKs (Web, iOS, Android, React Native, Flutter). Enable in Document Engine config and point the client at the engine URL.
- Document Engine vs Nutrient DWS: Document Engine runs on the user's infrastructure (no data leaves the environment); Nutrient DWS is Nutrient's hosted cloud service. Use Document Engine when data residency or offline operation is required.