pspdfkit

Nutrient Web SDK (previously PSPDFKit)

The pspdfkit package has been renamed to @nutrient-sdk/viewer.

Please use the @nutrient-sdk/viewer package going forward.

PDF SDK for document viewing and editing in the browser

Nutrient Web SDK (previously PSPDFKit for Web) is a secure JavaScript PDF library for viewing, annotating, and editing PDFs, Office documents, TIFFs, JPGs, and PNGs directly in the browser. It offers developers a way to quickly add document and image functionality to any web application. There are many awesome examples, and it comes supported by the amazing team at Nutrient. Our PDF SDK is fully compatible with React, Angular, Vue, Svelte, Next.js, Nuxt, Vite, Electron, and any other JavaScript or TypeScript framework.

Nutrient Web SDK can also be integrated into your Salesforce instance, as well as Microsoft Sharepoint, Teams, and OneDrive.

• Customizable — Robust API for configuring behavior and appearance
• Client-side — Workload is offloaded to client (no server needed)
• Secure — Battle-tested, reliable PDFium-based PDF rendering engine
• Office document support — View and convert Office documents without third-party dependencies

Web demos

• Document viewing
• Customizable UI
• Adding annotations
• Filling PDF forms
• Creating PDF forms
• Signatures
• Document editing
• Document generation
• Generate PDFs from DOCX templates
• Real-time collaboration
• And more

File type support

Nutrient Web SDK enables client-side viewing and conversion of PDF, Word, Excel, PowerPoint, TIFF, JPG, and PNG files directly on any browser — no server dependencies or MS Office licenses are required.

• PDF, PDF/A (1, 2, 3, 4)
• DOCX, DOC, DOTX, DOCM, XLSX, XLS, XLSM, PPTX, PPT, PPTM
• PNG, JPEG, JPG, TIFF, TIF

Browser support

Our PDF SDK supports the latest versions of all commonly used browsers: Chrome, Mozilla Firefox, Safari, Edge, and Firefox ESR.

Integrations

Nutrient Web SDK is compatible with Salesforce, SharePoint, Microsoft Teams, and Microsoft OneDrive.

Documentation

Nutrient offers comprehensive guides and code samples to help you quickly integrate and customize your application. It comes with full technical support that includes direct access to the engineers who built the product. Whether you have questions getting started with our PDF SDK, or you want to know how to best integrate new features into your app, we’re here to help you find a solution.

Most popular guides:

• PDF viewer
• Office conversion
• Annotation
• Forms
• Signatures
• Editor
• PDF generation
• Conversion
• Extraction
• Redaction
• Document security
• Search

API

Read the full API reference.

Changelog

For a detailed list of the changes included in each version, refer to the changelog.

License and support

Nutrient is a commercial product that offers a free trial license to evaluate and integrate it into your product. Visit our pricing page to learn more about licensing our solution.

Copyright © 2010-2025 PSPDFKit GmbH.