SDK Products

Accelerate innovation with comprehensive document SDKs

Build with best-in-class document SDKs that quickly and seamlessly integrate into your web, mobile, and server apps. Nutrient SDKs enable you to accelerate time to market, increase competitive differentiation and profitability, and comply with regulations.

Collaborate on docs in real-time with Nutrient's platform. Comment, markup text, and extract data with OCR.
Scribble your thoughts and chat about docs as if you're in the same room, in real time.
Use digital markup tools to highlight, underline, or strike through text.
Unearth the hidden gems of text with optical character recognition (OCR).Person types on laptop with Nutrient SDK features.Person types on laptop with Nutrient SDK features.

SDK Products

Accelerate innovation with comprehensive document SDKs

Build with best-in-class document SDKs that quickly and seamlessly integrate into your web, mobile, and server apps. Nutrient SDKs enable you to accelerate time to market, increase competitive differentiation and profitability, and comply with regulations.

Collaborate on docs in real-time with Nutrient's platform. Comment, markup text, and extract data with OCR.
Scribble your thoughts and chat about docs as if you're in the same room, in real time.
Use digital markup tools to highlight, underline, or strike through text.
Unearth the hidden gems of text with optical character recognition (OCR).Person types on laptop with Nutrient SDK features.Person types on laptop with Nutrient SDK features.

Build document workflows with extensible PDF APIs

Save time and money integrating document generation, viewing, editing, conversion, and signing into your workflows. Deliver consistent performance across multiple platforms with modern, extensible, and well-documented APIs. Develop quickly, support more use cases, and customize the UI to match your brand.

Nutrient for Web

1import PSPDFKit from "pspdfkit";
2
3// Obtain a PSPDFKit document instance.
4const instance = await PSPDFKit.load({
5	container: "#pspdfkit",
6	document: "<document-file-path>",
7	licenseKey: "<license-key>"
8});
9
10console.log("PSPDFKit for Web is ready!");
11console.log(instance);

Document Authoring Library

1import DocAuth from '@pspdfkit/document-authoring';
2
3const docAuthSystem = await DocAuth.createDocAuthSystem({
4	licenseKey: '<license-key>',
5});
6
7const editor = await docAuthSystem.createEditor(
8	document.getElementById('editor'), 
9	{
10  	document: await docAuthSystem.createDocumentFromPlaintext('Hi there!'),
11	}
12);

Nutrient for iOS

1import PSPDFKit
2import PSPDFKitUI
3import SwiftUI
4
5// A \`Document\` is the container for your PDF file.
6let document = Document(url: documentURL)
7
8var body: some View {
9	// A \`PDFView\` will present and manage the PSPDFKit UI.
10	PDFView(document: document)
11		.scrollDirection(.vertical)
12		.pageTransition(.scrollContinuous)
13		.pageMode(.single)
14}
1- (instancetype)initWithFrame:(CGRect)frame {
2	if ((self = [super initWithFrame:frame])) {
3		// Set configuration to use the custom annotation toolbar when initializing the \`PSPDFViewController\`.
4		// For more details, see \`PSCCustomizeAnnotationToolbarExample.m\` from PSPDFCatalog and our documentation here: https://pspdfkit.com/guides/ios/customizing-the-interface/customize-the-annotation-toolbar/
5		_pdfController = [[PSPDFViewController alloc] initWithDocument:nil configuration:[PSPDFConfiguration configurationWithBuilder:^(PSPDFConfigurationBuilder *builder) {
6			[builder overrideClass:PSPDFAnnotationToolbar.class withClass:CustomButtonAnnotationToolbar.class];
7		}]];
8
9		_pdfController.delegate = self;
10		_pdfController.annotationToolbarController.delegate = self;
11		_closeButton = [[UIBarButtonItem alloc] initWithImage:[PSPDFKitGlobal imageNamed:@"x"] style:UIBarButtonItemStylePlain target:self action:@selector(closeButtonPressed:)];
12
13		[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(annotationChangedNotification:) name:PSPDFAnnotationChangedNotification object:nil];
14		[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(annotationChangedNotification:) name:PSPDFAnnotationsAddedNotification object:nil];
15		[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(annotationChangedNotification:) name:PSPDFAnnotationsRemovedNotification object:nil];
16	}
17
18	return self;
19}

Nutrient for android

1// We are opening a document from application assets.
2val documentUri = Uri.parse("file:///android_asset/document.pdf")
3
4// Build the \`Intent\` for launching the \`PdfActivity\`.
5val intent = PdfActivityIntentBuilder.fromUri(context, documentUri).build()
6
7// Launch the activity.
8context.startActivity(intent)
1// We are opening a document from application assets.
2Uri documentUri = Uri.parse("file:///android_asset/document.pdf");
3
4// Build the Intent for launching the PdfActivity.
5Intent intent = PdfActivityIntentBuilder.fromUri(context, documentUri).build();
6
7// Launch the activity.
8context.startActivity(intent);

Nutrient for Flutter

1import 'dart:io';
2
3import 'package:flutter/material.dart';
4import 'package:path_provider/path_provider.dart';
5import 'package:pspdfkit_flutter/pspdfkit.dart';
6
7const String DOCUMENT_PATH = 'PDFs/Document.pdf';
8
9void main() => runApp(MyApp());
10
11class MyApp extends StatefulWidget {
12@override
13_MyAppState createState() => _MyAppState();
14}
15
16class _MyAppState extends State<MyApp> {
17void showDocument(BuildContext context) async {
18	final bytes = await DefaultAssetBundle.of(context).load(DOCUMENT_PATH);
19	final list = bytes.buffer.asUint8List();
20
21	final tempDir = await getTemporaryDirectory();
22	final tempDocumentPath = '$\{tempDir.path\}/$DOCUMENT_PATH';
23
24	final file = await File(tempDocumentPath).create(recursive: true);
25	file.writeAsBytesSync(list);
26
27	await Pspdfkit.present(tempDocumentPath);
28}
29
30@override
31Widget build(BuildContext context) {
32	final themeData = Theme.of(context);
33	return MaterialApp(
34		home: Scaffold(
35		body: Builder(
36			builder: (BuildContext context) {
37				return Center(
38				child: Column(
39					mainAxisAlignment: MainAxisAlignment.spaceEvenly,
40					children: [
41						ElevatedButton(
42						child: Text('Tap to Open Document',
43							style: themeData.textTheme.headline4?.copyWith(fontSize: 21.0)),
44							onPressed: () => showDocument(context))
45					]));
46			},
47		)),
48	);
49}
50}

Nutrient for React native

1import React, {Component} from 'react';
2import {Platform} from 'react-native';
3import PSPDFKitView from 'react-native-pspdfkit';
4
5const DOCUMENT =
6	Platform.OS === 'ios' ? 'Document.pdf' : 'file:///android_asset/Document.pdf';
7export default class PSPDFKitDemo extends Component<{}> {
8	render() {
9	return (
10		<PSPDFKitView
11		document={DOCUMENT}
12		configuration={{
13			showThumbnailBar: 'scrollable',
14			pageTransition: 'scrollContinuous',
15			scrollDirection: 'vertical',
16		}}
17		ref={this.pdfRef}
18		fragmentTag="PDF1"
19		style={{flex: 1}}
20		/>
21	);
22	}
23}

Nutrient for Cordova

1var app = {
2	// Application Constructor
3	initialize: function() {
4		document.addEventListener('deviceready', this.onDeviceReady.bind(this), false);
5	},
6
7	// deviceready Event Handler
8	//
9	// Bind any cordova events here. Common events are:
10	// 'pause', 'resume', etc.
11	onDeviceReady: function() {
12		this.receivedEvent('deviceready');
13		const DOCUMENT = (window.cordova.platformId === "ios") ? "Document.pdf" : "file:///android_asset/Document.pdf";
14		PSPDFKit.present(DOCUMENT);
15	},
16
17	// Update DOM on a Received Event
18	receivedEvent: function(id) {
19		var parentElement = document.getElementById(id);
20		var listeningElement = parentElement.querySelector('.listening');
21		var receivedElement = parentElement.querySelector('.received');
22
23		listeningElement.setAttribute('style', 'display:none;');
24		receivedElement.setAttribute('style', 'display:block;');
25
26		console.log('Received Event: ' + id);
27	}
28};
29
30app.initialize();

Nutrient for Xamarin

1using PSPDFKit.Model;
2using PSPDFKit.UI;
3using PSPDFKit.Instant;
4
5var configuration = PSPDFConfiguration.FromConfigurationBuilder ((builder) => {
6	builder.PageMode = PSPDFPageMode.Single;
7	builder.PageTransition = PSPDFPageTransition.ScrollContinuous;
8	builder.ScrollDirection = PSPDFScrollDirection.Vertical;
9}));
10
11var document = new PSPDFDocument (NSUrl.FromFilename ("document.pdf"));
12var pdfViewController = new PSPDFViewController (document, configuration);

Nutrient for Ionic

1import { Component } from "@angular/core";
2import { Platform } from "@ionic/angular";
3
4@Component({
5	selector: "app-root",
6	templateUrl: "app.component.html",
7	styleUrls: ["app.component.scss"],
8})
9export class AppComponent {
10	constructor(private platform: Platform) {
11	this.platform.ready().then(() => {
12		const DOCUMENT = this.platform.is("ios")
13		? "Document.pdf"
14		: "file:///android_asset/Document.pdf";
15		PSPDFKit.present(DOCUMENT);
16	});
17	}
18}

GdPicture.NET SDK

1using (GdPictureDocumentConverter oConverter = new GdPictureDocumentConverter())
2{
3	// Select the source document and its file format (DOCX, DOC, XLSX, XLS, PPTX, PPT).
4	oConverter.LoadFromFile("input.docx", GdPicture14.DocumentFormat.DocumentFormatDOCX);
5	// Convert the source document to PDF.
6	oConverter.SaveAsPDF("output.pdf", PdfConformance.PDF);
7}
1Using oConverter As GdPictureDocumentConverter = New GdPictureDocumentConverter()
2	'Select the source document and its file format (DOCX, DOC, XLSX, XLS, PPTX, PPT).
3	oConverter.LoadFromFile("input.docx", GdPicture14.DocumentFormat.DocumentFormatDOCX)
4	'Convert the source document to PDF.
5	Converter.SaveAsPDF("output.pdf", PdfConformance.PDF)
6End Using

Document Engine

1# You simply supply a list of document operations to apply.
2curl -F [email protected] \\
3	-F operations='{"operations":[{"type": "flattenAnnotations"}]}' \\
4	http://localhost:5000/process \\
5	--output result.pdf

Nutrient for Java

1// Initialize PSPDFKit with your activation key.
2PSPDFKit.initialize("YOUR_LICENSE_KEY_GOES_HERE");
3
4// Open a document to work on.
5File file = new File("assets/default.pdf");
6PdfDocument document = new PdfDocument(new FileDataProvider(file));
7
8// Add a new stamp annotation.
9JSONObject jsonObject = new JSONObject();
10jsonObject.put("bbox", new float[]{0, 0, 100, 50});
11jsonObject.put("pageIndex", 0);
12jsonObject.put("type", "pspdfkit/stamp");
13jsonObject.put("stampType", "Approved");
14jsonObject.put("opacity", 1);
15jsonObject.put("v", 1);
16document.getAnnotationProvider().addAnnotationJson(jsonObject);
17
18// Export the changes to Instant Document JSON.
19File jsonFile = new File("out/instantOutput.json");
20if (jsonFile.createNewFile()) {
21	document.exportDocumentJson(new FileDataProvider(jsonFile));
22}
23
24// Render the first page and save to a PNG.
25BufferedImage image = document.getPage(0).renderPage();
26File pngfile = new File("out/test.png");
27boolean success = ImageIO.write(image, "png", pngfile);

Managed Document Engine

1# You simply supply a list of document operations to apply.
2curl -F [email protected] \\
3	-F operations='{"operations":[{"type": "flattenAnnotations"}]}' \\
4	http://localhost:5000/process \\
5	--output result.pdf

Nutrient for Windows

1// This loads a PDF from \`Assets\` as soon as the \`PdfView\` is ready.
2private async void PdfViewInitializationCompletedHandler(PdfView sender, Document args)
3{
4	try
5	{
6		var file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/document.pdf"));
7		if (file == null) return;
8
9		await sender.OpenStorageFileAsync(file);
10	}
11	catch (Exception e)
12	{
13		var messageDialog = new MessageDialog(e.Message);
14		await messageDialog.ShowAsync();
15	}
16}
17
18// This loads a PDF from a file picked by the user in the UI.
19private async void Button_OpenPDF_Click(object sender, RoutedEventArgs e)
20{
21	// Open a \`Picker\` so the user can choose a PDF.
22	var picker = new FileOpenPicker
23	{
24		ViewMode = PickerViewMode.Thumbnail,
25		SuggestedStartLocation = PickerLocationId.DocumentsLibrary
26	};
27	picker.FileTypeFilter.Add(".pdf");
28
29	var file = await picker.PickSingleFileAsync();
30	if (file == null) return;
31
32	// Open and display it in the PSPDFKit \`PdfView\`.
33	var documentSource = DocumentSource.CreateFromStorageFile(file);
34	await PdfView.Controller.ShowDocumentAsync(documentSource);
35}
1Imports Windows.Storage
2Imports Windows.Storage.Pickers
3Imports PSPDFKit.Document
4Imports PSPDFKit.Pdf
5Imports PSPDFKit.UI
6
7Public NotInheritable Class MainPage
8Inherits Page
9
10Private Async Sub PdfViewInitializationCompletedHandler(sender As PdfView, args As Document)
11Dim file As StorageFile
12file = Await StorageFile.GetFileFromApplicationUriAsync(New Uri("ms-appx:///Assets/document.pdf"))
13
14If file IsNot Nothing Then
15Await sender.OpenStorageFileAsync(file)
16End If
17End Sub
18
19Private Async Sub Button_OpenPDF_Click(sender As Object, e As RoutedEventArgs)
20Dim picker As New FileOpenPicker
21picker.FileTypeFilter.Add(".pdf")
22
23Dim file = Await picker.PickSingleFileAsync
24If file IsNot Nothing Then
25Dim documentSource As DocumentSource
26documentSource = DocumentSource.CreateFromStorageFile(file)
27Await PdfView.Controller.ShowDocumentAsync(documentSource)
28End If
29End Sub
30End Class
1// This loads a PDF from \`Assets\` as soon as the \`PdfView\` is ready.
2void MainPage::PdfViewInitializationCompletedHandler(UI::PdfView^ sender, Pdf::Document^ args)
3{
4	const auto path = ref new Uri("ms-appx:///Assets/document.pdf");
5
6	create_task(StorageFile::GetFileFromApplicationUriAsync(path))
7	.then([this](StorageFile^ file)
8	{
9		if (file == nullptr) return;
10
11		PdfView->OpenStorageFileAsync(file);
12	});
13}
14
15// This loads a PDF from a file picked by the user in the UI.
16void MainPage::Button_OpenPDF_Click(Platform::Object^ sender, RoutedEventArgs^ e)
17{
18	// Open a \`Picker\` so the user can choose a PDF.
19	FileOpenPicker^ openPicker = ref new FileOpenPicker();
20	openPicker->ViewMode = PickerViewMode::Thumbnail;
21	openPicker->SuggestedStartLocation = PickerLocationId::PicturesLibrary;
22	openPicker->FileTypeFilter->Append(".pdf");
23
24	create_task(openPicker->PickSingleFileAsync())
25	.then([this](StorageFile^ file)
26	{
27		if (file == nullptr) return;
28
29		// Open and display it in the PSPDFKit \`PdfView\`.
30		const auto documentSource = DocumentSource::CreateFromStorageFile(file);
31		PdfView->Controller->ShowDocumentAsync(documentSource);
32	});
33}
1<Page
2x:Class="BasicExample.MainPage"
3xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
4xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
5xmlns:local="using:BasicExample"
6xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
7xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
8xmlns:ui="using:PSPDFKit.UI"
9mc:Ignorable="d"
10Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
11	<Page.Resources>
12		<x:String x:Key="license">YOUR LICENSE GOES HERE</x:String>
13	</Page.Resources>
14
15	<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
16		<Grid.RowDefinitions>
17			<RowDefinition Height="*"/>
18			<RowDefinition Height="52"/>
19		</Grid.RowDefinitions>
20		<ui:PdfView Grid.Row="0" Name="PdfView" License="{StaticResource license}" InitializationCompletedHandler="PdfViewInitializationCompletedHandler"/>
21		<Button Content="Open PDF" HorizontalAlignment="Left" Margin="10" Grid.Row="1" Name="Button_OpenPDF" Click="Button_OpenPDF_Click"/>
22	</Grid>
23</Page>

Nutrient for Mac Catalyst

1import PSPDFKit
2import PSPDFKitUI
3import SwiftUI
4
5// A \`Document\` is the container for your PDF file.
6let document = Document(url: documentURL)
7
8var body: some View {
9	// A \`PDFView\` will present and manage the PSPDFKit UI.
10	PDFView(document: document)
11		.scrollDirection(.vertical)
12		.pageTransition(.scrollContinuous)
13		.pageMode(.single)
14}
1- (instancetype)initWithFrame:(CGRect)frame {
2	if ((self = [super initWithFrame:frame])) {
3		// Set configuration to use the custom annotation toolbar when initializing the \`PSPDFViewController\`.
4		// For more details, see \`PSCCustomizeAnnotationToolbarExample.m\` from PSPDFCatalog and our documentation here: https://pspdfkit.com/guides/ios/customizing-the-interface/customize-the-annotation-toolbar/
5		_pdfController = [[PSPDFViewController alloc] initWithDocument:nil configuration:[PSPDFConfiguration configurationWithBuilder:^(PSPDFConfigurationBuilder *builder) {
6			[builder overrideClass:PSPDFAnnotationToolbar.class withClass:CustomButtonAnnotationToolbar.class];
7		}]];
8
9		_pdfController.delegate = self;
10		_pdfController.annotationToolbarController.delegate = self;
11		_closeButton = [[UIBarButtonItem alloc] initWithImage:[PSPDFKitGlobal imageNamed:@"x"] style:UIBarButtonItemStylePlain target:self action:@selector(closeButtonPressed:)];
12
13		[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(annotationChangedNotification:) name:PSPDFAnnotationChangedNotification object:nil];
14		[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(annotationChangedNotification:) name:PSPDFAnnotationsAddedNotification object:nil];
15		[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(annotationChangedNotification:) name:PSPDFAnnotationsRemovedNotification object:nil];
16	}
17
18	return self;
19}

Nutrient for Electron

1import PSPDFKit from "pspdfkit";
2
3// Obtain a PSPDFKit document instance.
4const instance = await PSPDFKit.load({
5	container: "#pspdfkit",
6	document: "<document-file-path>",
7	licenseKey: "<license-key>"
8});
9
10console.log("PSPDFKit for Web is ready!");
11console.log(instance);

PDF Generation API

1curl -X POST https://api.pspdfkit.com/build
2	-H "Authorization: Bearer your_api_key_here"
3	-o result.pdf
4	-F [email protected]
5	-F instructions='{
6			"parts": [
7				{ "html": "index.html" }
8			]
9		}'

PDF Conversion API

1curl -X POST https://api.pspdfkit.com/build
2	-H "Authorization: Bearer your_api_key_here"
3	-o converted.pdf
4	-F [email protected]
5	-F instructions='{
6			"parts": [
7				{ "file": "document" }
8			]
9		}'

PDF Editor API

1curl -X POST https://api.pspdfkit.com/build
2	-H "Authorization: Bearer your_api_key_here"
3	-o merged.pdf
4	-F [email protected]
5	-F [email protected]
6	-F instructions='{
7			"parts": [
8				{ "file": "part1" },
9				{ "file": "part2" }
10			]
11		}'

PDF OCR API

1curl -X POST https://api.pspdfkit.com/build
2	-H "Authorization: Bearer your_api_key_here"
3	-o result.pdf
4	-F [email protected]
5	-F instructions='{
6			"parts": [
7				{ "file": "document" }
8			],
9			"actions": [{
10				"type": "ocr",
11				"language": "english"
12			}]
13		}'

Choose your SDK

Our document SDKs offer flexible deployment options. Whether you’re developing for web, mobile, or server, ensure a seamless user experience across all devices.

Web SDKs

Enable users to perform advanced document functionality without leaving your app. Build with customizable SDKs that support leading JavaScript frameworks and all major browsers.

Learn More

Mobile SDKs

Integrate advanced document functionality into iOS and Android apps, or deploy across multiple platforms with cross-platform technology, accelerating time to market at lower cost and complexity.

Learn More

Server SDKs

Scale your digital transformation with advanced document processing for server apps and backend services. Enable document generation, editing, conversion, compression, data extraction, and more.

Learn More

Improve product adoption with Nutrient SDKs

Use our best-in-class document SDKs to innovate, differentiate competitively, capture more revenue, and elevate your customers' experiences with documents.

Accelerate development

Reduce the time needed to develop and maintain software. Leverage our many years of research and partnerships with hundreds of customers to deliver innovations that get you out ahead and help you stay there.

Optimize revenue

Increase your product’s value and delight your users with our high-quality and performant document SDKs. Spend less time adapting your product to platform and framework changes or managing support requests.

Build secure apps

Build with SDKs backed by the security of PDFium, just like Dropbox, Chrome, and Edge. Protect content with access management, encryption, watermarks, disabling printing or downloading, and document password protection.

Discover why developers love Nutrient SDKs

5.0*

“Great tool that covers one of our product’s core functionalities.”

Dmytro H.

Principal Engineer

5.0*

“A true partner in delivering value for our customers.”

Kim T.

Small-Business (50 or fewer emp.)

5.0*

“The software is reliable and easy to integrate with.”

Verified User in Computer Software

Mid-Market (51-1000 emp.)

5.0*

“Great tool that covers one of our product’s core functionalities.”

Dmytro H.

Principal Engineer

5.0*

“A true partner in delivering value for our customers.”

Kim T.

Principal Engineer

5.0*

“The software is reliable and easy to integrate with.”

Verified User in Computer Software

Principal Engineer

Trusted by industry leaders

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Angelica Nierras

Chief Growth Officer

“Nutrient helps us significantly accelerate our time to market, provide key services to our clients, and reliably deliver solutions that we can easily integrate into our portfolio.”

Faria Education Group

Shift your product development into overdrive with our SDKs

+63%

Reduction in engineering investment

up to
400%

Decrease in time to market