.NET PDF Library

PSPDFKit Library for .NET is an SDK for editing, form filling, redacting, and rendering PDFs. It offers developers a rich API for quickly adding PDF functionality to any .NET application.

PSPDFKit SDKs are deployed in some of the world’s most popular applications, such as those made by PlanGrid, Disney, DocuSign, Dropbox, IBM, and Lufthansa.

Key Capabilities

  • Low-level APIs – For fine-grained control

  • High fidelity – Accurate & reliable PDFium-based rendering engine

  • Prebuilt features – Edit, fill forms, redact, annotate, and more

Essential Guides

Get Started How to quickly integrate a PDF editing, form filling, and redacting library

Open a Document How to open a PDF from local storage, a URL, in-memory data, and more

Save a Document How to save a PDF to local storage, custom data providers, and more

Annotations How to import, export, create, edit, and flatten annotations, and more

Forms How to fill form fields, extract data, edit fields, and more

Editor How to merge or split documents, manipulate pages, and more

Redaction How to redact content programmatically

OCR How to make scans searchable, extract text from images, and more

Rendering How to render a PDF page to a bitmap or thumbnail

Free Trial

  • Unlimited trial usage

  • Guidance and tech support from developers

  • Get started