---
title: ".NET C# PDF library for iOS & iPadOS: View, edit, annotate PDF"
canonical_url: "https://www.nutrient.io/guides/dotnet-for-ios/"
md_url: "https://www.nutrient.io/guides/dotnet-for-ios.md"
last_updated: "2026-06-09T10:32:42.764Z"
description: "Access the powerful .NET SDK to view, edit, and annotate PDFs in your iOS applications. Maximize iOS PDF APIs and enhance your app’s performance with .NET 7."
---

# C# PDF library for iOS

Nutrient.NET for iOS can be used for viewing, annotating, editing, and creating PDFs. It offers developers a way to access our iOS API from C# code, bringing PDF functionality to any iOS application.

[Get started](https://www.nutrient.io/sdk/dotnet-for-ios/getting-started.md)

## Essential guides

Learn how to get started with opening documents, saving changes, and customizing the UI.

[Explore all](https://www.nutrient.io/guides/ios/intro.md)

---

**Open a document**

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

[Read more](https://www.nutrient.io/guides/ios/open-a-document.md)

---

**Save a document**

How to save a PDF to local storage, a remote server, and more

[Read more](https://www.nutrient.io/guides/ios/save-a-document.md)

---

**User interface**

How to customize icons, buttons, toolbars, the look and feel, and more

[Read more](https://www.nutrient.io/guides/ios/user-interface.md)

## File type support

Microsoft Office file types are supported when using the optional [Document Engine](/guides/document-engine.md).

`PDF documents`

`Image documents`

`Office files`

**Call to Action**

Start your free trial for unlimited access and expert support.

[Learn More](https://www.nutrient.io/sdk/dotnet-for-ios/getting-started.md)