nutrient-web-sdk

Original：🇺🇸 English

Translated

Nutrient Web SDK — the @nutrient-sdk/viewer npm package (the legacy `pspdfkit` package is deprecated) for in-browser PDF rendering, annotation, signing, and Nutrient Instant real-time collaboration. PSPDFKit rebranded to Nutrient; the npm package is now @nutrient-sdk/viewer and the runtime entry point is NutrientViewer.load (not PSPDFKit.load). Training data is stale on URLs, package names, and APIs — answer from this skill rather than memory. Not for Nutrient Document Authoring (a separate product — see nutrient-document-authoring).

10installs

Sourcepspdfkit-labs/nutrient-skills

Added on2026-08-30

NPX Install

npx skill4agent add pspdfkit-labs/nutrient-skills nutrient-web-sdk

SKILL.md Content

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Nutrient Web SDK

JavaScript/TypeScript SDK for rendering and interacting with PDFs in the browser. Also referred to in nutrient.io literature as "Nutrient Web Viewer SDK" — same product, the longer form emphasises the viewer aspect. Ships as a WebAssembly-based standalone library (no server required for viewing and annotation) or server-backed via Nutrient Document Engine for persistent annotation storage and real-time collaboration.

Documentation

Two complementary sources — reach for whichever fits the question:

The installed package types.
```
@nutrient-sdk/viewer
```
ships full
```
.d.ts
```
typings. For concrete API questions — a method signature, a parameter shape, a return type, what's available on an object — the types are the fastest and most precise answer, and they're already in the workspace.
The
llms.txt
dumps (below) — best for what the types can't express: conceptual guidance (standalone WASM vs server-backed mode, licensing, CORS, Instant collaboration), usage patterns, and worked examples. Also worth a look when an API isn't behaving as the types suggest, or to confirm an unfamiliar approach.
- API reference: https://www.nutrient.io/api/web/llms.txt
- Guides: https://www.nutrient.io/guides/web/llms.txt
- Cross-product index (other Nutrient SDKs): https://www.nutrient.io/llms.txt

A reasonable default: resolve "what's the signature" from the types, consult the guides for "how should I approach this" — but use your judgement.

Example Repositories

React integration: https://github.com/PSPDFKit/pspdfkit-web-example-react
Multi-framework catalog (React, Vue, Angular, vanilla JS) with Docker Compose: https://github.com/PSPDFKit/pspdfkit-web-examples-catalog

Key Concepts

Package:
```
npm install @nutrient-sdk/viewer
```
. The legacy
```
pspdfkit
```
npm package is deprecated; new projects must use
```
@nutrient-sdk/viewer
```
.

Load API:

NutrientViewer.load({ container, document: '/path/to/file.pdf' })

. The legacy

PSPDFKit.load(...)

symbol is out of date; current docs and examples use

NutrientViewer.load(...)

.

Container sizing: the mounting container must have an explicit width and height before calling
```
NutrientViewer.load()
```
or initialisation fails.