---
title: "iOS PDF redaction library — Secure & permanent | Nutrient"
canonical_url: "https://www.nutrient.io/guides/ios/redaction/"
md_url: "https://www.nutrient.io/guides/ios/redaction.md"
last_updated: "2026-06-09T10:38:40.905Z"
description: "Unlock the secrets of iOS redaction with expert tips and techniques. Learn how to enhance your document security effortlessly. Click now!"
---

# PDF redaction library for iOS

Permanently redact content within PDF documents. Nutrient iOS SDK offers developers a robust API to automate redaction in any app, as well as a beautiful UI for creating, previewing, and applying redactions.

## Introduction to redaction

Redaction is the process of removing image, text, and vector content from a PDF page. This not only involves obscuring the content, but also removing the data in a document within the specified region.

[Learn more](https://www.nutrient.io/guides/ios/redaction/introduction-to-redaction.md)

## Essential guides

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**Programmatic redaction**

How to use the API to programmatically redact content from PDFs

[Read more](https://www.nutrient.io/guides/ios/features/redaction.md)

---

**Redact regex patterns**

How to automate redaction by using regex patterns in text search

[Read more](https://www.nutrient.io/guides/ios/redaction/regex-patterns.md)

---

**Search and redact**

How to automatically create redactions based on search criteria

[Read more](https://www.nutrient.io/guides/ios/redaction/search-and-redact.md)

---

**Built-in redaction UI**

Learn about the document operations available in the redaction UI

[Read more](https://www.nutrient.io/guides/ios/redaction/built-in-ui.md)

**Call to Action**

Start your free trial for unlimited access and expert support.

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

---

## Related pages

- [Redacting PDFs in iOS viewer](/guides/ios/redaction/built-in-ui.md)
- [Redact PDFs with Nutrient iOS SDK](/guides/ios/redaction/introduction-to-redaction.md)
- [Using RegEx to redact PDFs on iOS](/guides/ios/redaction/regex-patterns.md)
- [Redacting PDFs programmatically on iOS](/guides/ios/features/redaction.md)
- [Search and redact PDFs on iOS](/guides/ios/redaction/search-and-redact.md)