---
title: "How to add annotations to a PDF using React Native"
canonical_url: "https://www.nutrient.io/blog/react-native-pdf-annotation/"
md_url: "https://www.nutrient.io/blog/react-native-pdf-annotation.md"
last_updated: "2026-08-05T08:27:03.654Z"
description: "Learn how to add ink and text annotations to PDFs in React Native using the Nutrient SDK — set an annotation author and embed annotations directly into the file."
---
In this post, you’ll learn how to use React Native to add annotations to PDF documents.
Nutrient lets you add document annotation functionality to your React Native application. This tutorial will explore how to add ink and text annotations, how to set an annotation author, and how to embed annotations into PDFs.
## Nutrient React Native PDF library
Nutrient offers a commercial [React Native PDF library](https://www.nutrient.io/guides/react-native.md) for viewing, generating, annotating, and editing PDFs. You can use it to quickly add PDF functionality to your React Native applications.
It offers a variety of additional features and capabilities, including:
- [17+ out-of-the-box annotations](https://www.nutrient.io/guides/react-native/annotations.md) to mark up, draw on, and add comments to documents.
- [PDF editing](https://www.nutrient.io/sdk/solutions/editing/) to merge, split, rotate, and crop documents.
- [PDF forms](https://www.nutrient.io/guides/react-native/forms.md) to create, fill, and capture PDF form data.
- [Digital signatures](https://www.nutrient.io/sdk/solutions/signing/) to validate the authenticity and integrity of a PDF.
New to React Native PDFs? Start with [how to build a React Native PDF viewer](https://www.nutrient.io/blog/how-to-build-a-react-native-pdf-viewer.md) for the end-to-end setup, then come back here to add annotations.
## Requirements
For this tutorial, you’ll need a React Native [development environment](https://reactnative.dev/docs/environment-setup) for running React Native projects using the React Native command-line interface (CLI) — not the Expo CLI — and configured for the platforms you want to build (Android, iOS, or both).
## Dependencies
There are two dependencies you’ll need:
- [`@nutrient-sdk/react-native`](https://github.com/PSPDFKit/react-native)
- [`react-native-fs`](https://www.npmjs.com/package/react-native-fs)
## Getting started
Here’s an overview of the steps you’ll follow:
1. [Installing the necessary dependencies](#installing-the-necessary-dependencies)
2. [Displaying a PDF document](#displaying-a-pdf-document)
3. [Creating ink annotations](#creating-ink-annotations)
4. [Adding text annotations](#adding-text-annotations)
5. [Setting an annotation author](#setting-an-annotation-author)
6. [Embedding annotations into a PDF](#embedding-annotations-into-a-pdf)
## Installing the necessary dependencies
1. Create a fresh React Native project:
```bash
npx react-native@latest init NutrientAnnotations
```
2. Change to the project directory and add the [Nutrient React Native SDK](https://github.com/PSPDFKit/react-native):
```bash
cd NutrientAnnotations
yarn add @nutrient-sdk/react-native
```
3. Add the [`react-native-fs`](https://www.npmjs.com/package/react-native-fs) dependency:
```
yarn add react-native-fs
```
4. Now, install all the dependencies for the project:
```
yarn install
```
5. Open your project’s `android/build.gradle` file and add the Nutrient repository so Gradle can download the Nutrient library:
```diff
allprojects {
repositories {
mavenCentral()
+ maven { url 'https://my.nutrient.io/maven/' }
}
}
```
6. Open your project’s `ios/Podfile` and set the platform version to iOS 15. The Nutrient pod is linked automatically through the npm package, so no manual `pod` entry is required:
```diff
- platform :ios, '11.0'
+ platform :ios, '15.0'
```
7. Change to the `ios` directory and install the CocoaPods dependencies:
```bash
cd ios
pod install
```
8. Open your project’s Workspace in Xcode:
```bash
open NutrientAnnotations.xcworkspace
```
9. Make sure the deployment target is set to 15.0 or higher.
10. Change `View controller-based status bar appearance` to `YES` in your project’s `Info.plist`.
## Displaying a PDF document
1. Add the PDF document you want to display to your application by dragging it into your project. In the dialogue that’s displayed, select Finish to accept the default integration options. Any PDF will work as a sample.
2. Change to the root of your project and create the `assets` directory:
```
cd..
mkdir android/app/src/main/assets
```
3. Then, copy the PDF document you want to display to the `assets` directory.
4. Open the `App.js` file and delete all its contents. Then, add the following import statements:
```js
import React, { Component } from 'react';
import { Platform, NativeModules } from 'react-native';
import NutrientView from '@nutrient-sdk/react-native';
```
5. Point to the document you added earlier:
```js
const DOCUMENT =
Platform.OS === 'ios'? 'Document.pdf'
: 'file:///android_asset/Document.pdf';
```
6. Now, display the document with the `NutrientView` component:
```js
{
const annotationJSONInk = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
isDrawnNaturally: false,
lineWidth: 5,
lines: {
intensities: [
[0.5, 0.5, 0.5],
[0.5, 0.5, 0.5],
],
points: [
[
[92.086334228515625, 101.07916259765625],
[92.086334228515625, 202.15826416015625],
[138.12950134277344, 303.2374267578125],
],
[
[184.17266845703125, 101.07916259765625],
[184.17266845703125, 202.15826416015625],
[230.2158203125, 303.2374267578125],
],
],
},
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
strokeColor: '#DC143C',
type: 'pspdfkit/ink',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONInk]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Ink Annotation"
accessibilityLabel="Add Ink Annotation"
/>
```
3. Put it all together:
```js
import React, { Component } from 'react';
import { Platform, Button, NativeModules } from 'react-native';
import NutrientView from '@nutrient-sdk/react-native';
const Nutrient = NativeModules.Nutrient;
Nutrient.setLicenseKey(null);
const DOCUMENT =
Platform.OS === 'ios'? 'Document.pdf'
: 'file:///android_asset/Document.pdf';
export default class NutrientDemo extends Component {
constructor(props) {
super(props);
this.pdfRef = React.createRef();
}
render() {
return (
<>
{
const annotationJSONInk = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
isDrawnNaturally: false,
lineWidth: 5,
lines: {
intensities: [
[0.5, 0.5, 0.5],
[0.5, 0.5, 0.5],
],
points: [
[
[92.086334228515625, 101.07916259765625],
[92.086334228515625, 202.15826416015625],
[138.12950134277344, 303.2374267578125],
],
[
[184.17266845703125, 101.07916259765625],
[184.17266845703125, 202.15826416015625],
[230.2158203125, 303.2374267578125],
],
],
},
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
strokeColor: '#DC143C',
type: 'pspdfkit/ink',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONInk]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Ink Annotation"
accessibilityLabel="Add Ink Annotation"
/>
);
}
}
```
Replace the contents of `App.js` with the code above for a working example.
4. Launch the app:
```bash
npx react-native run-android
```
```bash
npx react-native run-ios
```
## Adding text annotations
1. Similar to ink annotations, you’ll define the text annotation JSON first:
```json
const annotationJSONText = {
bbox: [
89.586334228515625, 98.5791015625, 143.12948608398438,
207.1583251953125,
],
horizontalAlign: 'center',
verticalAlign: 'center',
isBold: true,
text: 'Welcome to\nNutrient',
font: 'Helvetica',
fontColor: '#DC143C',
fontSize: 24.0,
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
type: 'pspdfkit/text',
v: 1,
};
```
2. Create a `Button` component, which will trigger the `addAnnotations([jsonAnnotation])` function when pressed:
```js
{
const annotationJSONText = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
horizontalAlign: 'center',
verticalAlign: 'center',
isBold: true,
text: 'Welcome to\nNutrient',
font: 'Helvetica',
fontColor: '#DC143C',
fontSize: 24.0,
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
type: 'pspdfkit/text',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONText]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Text Annotation"
accessibilityLabel="Add Text Annotation"
/>
```
3. In your `App.js` file, you’ll have:
```js
import React, { Component } from 'react';
import { Platform, Button, NativeModules } from 'react-native';
import NutrientView from '@nutrient-sdk/react-native';
const Nutrient = NativeModules.Nutrient;
Nutrient.setLicenseKey(null);
const DOCUMENT =
Platform.OS === 'ios'? 'Document.pdf'
: 'file:///android_asset/Document.pdf';
export default class NutrientDemo extends Component {
constructor(props) {
super(props);
this.pdfRef = React.createRef();
}
render() {
return (
<>
{
const annotationJSONInk = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
isDrawnNaturally: false,
lineWidth: 5,
lines: {
intensities: [
[0.5, 0.5, 0.5],
[0.5, 0.5, 0.5],
],
points: [
[
[92.086334228515625, 101.07916259765625],
[92.086334228515625, 202.15826416015625],
[138.12950134277344, 303.2374267578125],
],
[
[184.17266845703125, 101.07916259765625],
[184.17266845703125, 202.15826416015625],
[230.2158203125, 303.2374267578125],
],
],
},
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
strokeColor: '#DC143C',
type: 'pspdfkit/ink',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONInk]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Ink Annotation"
accessibilityLabel="Add Ink Annotation"
/>
{
const annotationJSONText = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
horizontalAlign: 'center',
verticalAlign: 'center',
isBold: true,
text: 'Welcome to\nNutrient',
font: 'Helvetica',
fontColor: '#DC143C',
fontSize: 24.0,
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
type: 'pspdfkit/text',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONText]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Text Annotation"
accessibilityLabel="Add Text Annotation"
/>
);
}
}
```
Replace the contents of `App.js` with the code above for a working example.
4. Launch your app:
```bash
npx react-native run-android
```
```bash
npx react-native run-ios
```
## Setting an annotation author
Programmatically adding an author name is accomplished by passing the `annotationAuthorName` prop in the `NutrientView` component:
```diff
{
const processedDocumentPath =
RNFS.DocumentDirectoryPath + '/flattened.pdf';
// Delete the processed document if it already exists.
RNFS.exists(processedDocumentPath).then((exists) => {
if (exists) {
RNFS.unlink(processedDocumentPath);
}
}).then(() => {
// First, save all annotations in the current document.
this.pdfRef.current?.getDocument().save().then((success) => {
if (success) {
console.log(Nutrient);
// Then, embed all the annotations.
Nutrient.processAnnotations(
'embed',
'all',
DOCUMENT,
processedDocumentPath,
).then((success) => {
if (success) {
// And finally, present the newly processed document with embedded annotations.
Nutrient.present(
processedDocumentPath,
{},
);
} else {
alert('Failed to embed annotations.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
} else {
alert('Failed to save current document.');
}
});
});
}}
title="Embed All Annotations"
/>
```
You’ll have the following in your `App.js`:
```js
import React, { Component } from 'react';
import { Platform, Button, NativeModules } from 'react-native';
import NutrientView from '@nutrient-sdk/react-native';
import RNFS from 'react-native-fs';
const DOCUMENT =
Platform.OS === 'ios'? 'Document.pdf'
: 'file:///android_asset/Document.pdf';
const { Nutrient } = NativeModules;
Nutrient.setLicenseKey(null);
export default class NutrientDemo extends Component {
constructor(props) {
super(props);
this.pdfRef = React.createRef();
}
render() {
return (
<>
{
const annotationJSONInk = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
isDrawnNaturally: false,
lineWidth: 5,
lines: {
intensities: [
[0.5, 0.5, 0.5],
[0.5, 0.5, 0.5],
],
points: [
[
[92.086334228515625, 101.07916259765625],
[92.086334228515625, 202.15826416015625],
[138.12950134277344, 303.2374267578125],
],
[
[184.17266845703125, 101.07916259765625],
[184.17266845703125, 202.15826416015625],
[230.2158203125, 303.2374267578125],
],
],
},
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
strokeColor: '#DC143C',
type: 'pspdfkit/ink',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONInk]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Ink Annotation"
accessibilityLabel="Add Ink Annotation"
/>
{
const annotationJSONText = {
bbox: [
89.586334228515625,
98.5791015625,
143.12948608398438,
207.1583251953125,
],
horizontalAlign: 'center',
verticalAlign: 'center',
isBold: true,
text: 'Welcome to\nNutrient',
font: 'Helvetica',
fontColor: '#DC143C',
fontSize: 24.0,
opacity: 1,
pageIndex: 0,
name: 'A167811E-6D10-4546-A147-B7AD775FE8AC',
type: 'pspdfkit/text',
v: 1,
};
this.pdfRef.current?.getDocument().addAnnotations([annotationJSONText]).then((result) => {
if (result) {
alert('Annotation was successfully added.');
} else {
alert('Failed to add annotation.');
}
}).catch((error) => {
alert(JSON.stringify(error));
});
}}
title="Add Text Annotation"
accessibilityLabel="Add Text Annotation"
/>
{
const processedDocumentPath =
RNFS.DocumentDirectoryPath + '/flattened.pdf';
// Delete the processed document if it already exists.
RNFS.exists(processedDocumentPath).then((exists) => {
if (exists) {
RNFS.unlink(processedDocumentPath);
}
}).then(() => {
// First, save all annotations in the current document.
this.pdfRef.current?.getDocument().save().then((success) => {
if (success) {
// Then, embed all the annotations.
Nutrient.processAnnotations(
'embed',
'all',
DOCUMENT,
processedDocumentPath,
).then((success) => {
if (success) {
// And finally, present the newly processed document with embedded annotations.
Nutrient.present(
processedDocumentPath,
{},
);
} else {
alert(
'Failed to embed annotations.',
);
}
}).catch((error) => {
alert(JSON.stringify(error));
});
} else {
alert(
'Failed to save current document.',
);
}
});
});
}}
title="Embed All Annotations"
/>
);
}
}
```
Replace the contents of `App.js` with the code above for a working example.
Launch your app:
```bash
npx react-native run-android
```
```bash
npx react-native run-ios
```
## Conclusion
In this post, you learned how to annotate PDFs and embed annotations into a PDF in React Native using Nutrient React Native SDK. In case of any hiccups, don’t hesitate to [reach out to our Support team](https://www.nutrient.io/support/) for help.
Nutrient React Native SDK is an SDK for viewing, annotating, and editing PDFs. It offers developers the ability to quickly add PDF functionality to any React Native application. Try it for [free](https://www.nutrient.io/try/), or visit [our demo][] to see it in action.
## FAQ
#### How can I add annotations to a PDF in React Native?
You can add annotations using the `NutrientView` component, which enables you to display and modify PDF documents.
#### What types of annotations can I add using Nutrient in React Native?
You can add various types of annotations like ink, text, and more using Nutrient’s React Native PDF library.
#### Does Nutrient support both iOS and Android for React Native applications?
Yes, Nutrient supports both iOS and Android in React Native applications.
#### Can I embed annotations directly into the PDF file?
Yes, annotations can be embedded into the PDF file using the provided functionality in Nutrient.
#### Do I need a license key to use Nutrient in React Native?
Yes, you need a Nutrient license key, though you can pass `null` during the trial period.
---
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- [How To Edit Pdfs Using Ios Pdf Library](/blog/how-to-edit-pdfs-using-ios-pdf-library.md)
- [How To Embed A Pdf Viewer In Your Website](/blog/how-to-embed-a-pdf-viewer-in-your-website.md)
- [How To Extract Tables From Pdf And Images](/blog/how-to-extract-tables-from-pdf-and-images.md)
- [How To Generate Pdf From Html With Nodejs](/blog/how-to-generate-pdf-from-html-with-nodejs.md)
- [base_url tells WeasyPrint where to resolve relative asset paths](/blog/how-to-generate-pdf-reports-from-html-in-python.md)
- [How To Merge Pdfs Using Javascript](/blog/how-to-merge-pdfs-using-javascript.md)
- [How To Ocr Pdfs In Linux](/blog/how-to-ocr-pdfs-in-linux.md)
- [How To Print Pdf In Csharp](/blog/how-to-print-pdf-in-csharp.md)
- [Open an image.](/blog/how-to-use-tesseract-ocr-in-python.md)
- [From an HTML string.](/blog/html-in-pdf-format.md)
- [Javascript Pdf Editors](/blog/javascript-pdf-editors.md)
- [Javascript Pdf Libraries](/blog/javascript-pdf-libraries.md)
- [Linearized Pdf](/blog/linearized-pdf.md)
- [or](/blog/merge-pdfs.md)
- [Swift Package Manager](/blog/mobile-pdf-sdk.md)
- [`elements` come from your document parser — each has a type and content.](/blog/multimodal-rag.md)
- [Nutrient Vs Conga Composer](/blog/nutrient-vs-conga-composer.md)
- [Online Document Viewer](/blog/online-document-viewer.md)
- [Open Pdf In Your Web App](/blog/open-pdf-in-your-web-app.md)
- [Building WCAG 2.2, Section 508, and PDF/UA-compliant PDFs with an SDK](/blog/pdf-accessibility.md)
- [Pdf Extraction Benchmark Opendataloader Bench](/blog/pdf-extraction-benchmark-opendataloader-bench.md)
- [Pdf Extraction Document Case Studies](/blog/pdf-extraction-document-case-studies.md)
- [Pdf Page Labels](/blog/pdf-page-labels.md)
- [Pdf Sdk Compliance Security Checklist](/blog/pdf-sdk-compliance-security-checklist.md)
- [Pdf Sdk Performance Benchmark](/blog/pdf-sdk-performance-benchmark.md)
- [Pdf Ua Compliance Guide](/blog/pdf-ua-compliance-guide.md)
- [Pdfjs Accessibility Structtree Printing](/blog/pdfjs-accessibility-structtree-printing.md)
- [Pdfjs Advanced Loading Streaming Workers](/blog/pdfjs-advanced-loading-streaming-workers.md)
- [Pdfjs Annotation Editor Layer](/blog/pdfjs-annotation-editor-layer.md)
- [Pdfjs Area Annotations Canvas Capture](/blog/pdfjs-area-annotations-canvas-capture.md)
- [Pdfjs Coordinate Systems Pdf To Screen](/blog/pdfjs-coordinate-systems-pdf-to-screen.md)
- [Pdfjs Document Outline Bookmarks Metadata](/blog/pdfjs-document-outline-bookmarks-metadata.md)
- [Pdfjs Eventbus Guide](/blog/pdfjs-eventbus-guide.md)
- [macOS](/blog/pdfjs-generating-pdf-thumbnails-pdf2pic.md)
- [Pdfjs Limitations Commercial Upgrade](/blog/pdfjs-limitations-commercial-upgrade.md)
- [Pdfjs Native Annotation Layer Forms](/blog/pdfjs-native-annotation-layer-forms.md)
- [Pdfjs Navigation Zoom Rotation](/blog/pdfjs-navigation-zoom-rotation.md)
- [Pdfjs Pdf Page Manipulation Pdf Lib](/blog/pdfjs-pdf-page-manipulation-pdf-lib.md)
- [Pdfjs React Viewer Setup](/blog/pdfjs-react-viewer-setup.md)
- [Pdfjs Rendering Overlays React Portals](/blog/pdfjs-rendering-overlays-react-portals.md)
- [Pdfjs Server Side Text Extraction](/blog/pdfjs-server-side-text-extraction.md)
- [Pdfjs Sticky Note Annotations](/blog/pdfjs-sticky-note-annotations.md)
- [Pdfjs Text Highlight Annotations](/blog/pdfjs-text-highlight-annotations.md)
- [Pdfjs Text Search Pdffindcontroller](/blog/pdfjs-text-search-pdffindcontroller.md)
- [Pdfjs Thumbnail Sidebar](/blog/pdfjs-thumbnail-sidebar.md)
- [Process Flows](/blog/process-flows.md)
- [Using Yarn](/blog/react-pdf-editor.md)
- [or](/blog/sample-blog-updated.md)
- [Sdk Product Updates Q2 2026](/blog/sdk-product-updates-q2-2026.md)
- [Add DWS MCP Server to your Claude Code project.](/blog/teaching-llms-to-read-pdfs.md)
- [Open an image file.](/blog/tesseract-python-guide.md)
- [Define the HTML part of the document.](/blog/top-10-ways-to-generate-pdfs-in-python.md)
- [Top 5 Javascript Pdf Viewers](/blog/top-5-javascript-pdf-viewers.md)
- [or](/blog/top-js-pdf-libraries.md)
- [Convert an HTML file to PDF.](/blog/top-ten-ways-to-convert-html-to-pdf.md)
- [Vector Pdf](/blog/vector-pdf.md)
- [Wcag2 Accessibility Requirements Documents](/blog/wcag2-accessibility-requirements-documents.md)
- [Web Sdk Is Now Headless](/blog/web-sdk-is-now-headless.md)
- [What Are Annotations](/blog/what-are-annotations.md)
- [What Is A Vpat](/blog/what-is-a-vpat.md)
- [What Is Document Processing](/blog/what-is-document-processing.md)
- [What Is Intelligent Document Processing](/blog/what-is-intelligent-document-processing.md)
- [What Is Pdf Ua](/blog/what-is-pdf-ua.md)
- [Why Pdfium Is A Trusted Platform For Pdf Rendering](/blog/why-pdfium-is-a-trusted-platform-for-pdf-rendering.md)
- [Why Your Ai Agent Hallucinates Pdf Table Data](/blog/why-your-ai-agent-hallucinates-pdf-table-data.md)