UWP PDF library

Nutrient UWP SDK is an SDK for viewing, annotating, editing, and signing PDFs. It offers developers a powerful API for quickly adding PDF functionality to any UWP application.

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Nutrient UWP SDK (formerly PSPDFKit for Windows) is being sunset, in line with Microsoft’s decision(opens in a new tab) to gradually phase out UWP by limiting updates to bug fixes and security patches. All Nutrient UWP licenses will continue to work and be supported until 1 December 2026, or until your license expires, whichever occurs later. Interested in transitioning to another Nutrient product? Contact us and we’ll be happy to help.

Latest release: Discover what’s new! Check out our changelog for the latest release updates.

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Key capabilities

Beautiful UI

Simple, easy to use, and highly customizable

Low-level APIs

For fine-grained control

High fidelity

Accurate, reliable PDFium-based rendering engine

Prebuilt features

Annotate, edit, sign, form fill, redact, and more

Essential guides

Learn how to quickly integrate a PDF viewing, annotating, and editing app.

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Discover PDF capabilities

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Supported file types

PDF documents
  • PDF
Image documents
  • PNG
  • JPEG
  • JPG
  • TIFF
  • TIF

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