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PDF SDKs

#1 PDF SDK for document creation, editing, and conversion

Integrate powerful PDF tools into your applications with a developer-friendly SDK. Create, edit, and convert to PDFs effortlessly, supporting features like annotations, form filling, and signing. Built for web, mobile, and desktop, our PDF SDK ensures seamless integration and compatibility with modern tech stacks.

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M365 Low-Code Document Solutions

Integrate secure M365 document solutions

Boost productivity and security within your M365 ecosystem. Keep document actions — whether it’s viewing, signing, redacting, or editing — safely inside the walls of your SharePoint instance. Easily automate document conversion, editing, OCR, tagging, and compression in SharePoint and Power Automate, whether you’re on-premises or in the cloud.

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Workflow Automation

Automate and track complex workflows

Get your team working more efficiently with a comprehensive workflow automation platform. Shrink request times, track signatures, and keep a robust audit log — all while gaining new insights into your business processes. Whether it’s tracking plutonium, managing capital expenditure requests, or building new-hire onboarding, we’ve done it. Find out what we can do for you.

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Document Web Services Rest API

Leverage modern cloud-based document processing

Add secure, powerful document processing to your document ecosystem via our REST API. Generate documents, add signatures, pull data from tables, convert Office files to PDF, and more — all without worrying about where your data is stored. Trust that your information stays safe with our simple document-in, document-out approach.

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Years of industry experience

+63%

Reduction in engineering investment

80%

Customers report faster time to market

DEVELOPERS

Build faster. Scale smarter.

With Nutrient’s comprehensive SDKs, you can move faster, stay on budget, and build reliable products. Simple integration, extensive documentation, and the most responsive support in the industry keep you on track, so you hit deadlines without the hassle. One seamless, scalable, and customizable SDK gives you everything you need‌. Say goodbye to figuring out messy libraries that keep you up at night — say hello to intuitive, maintainable APIs that are easy to implement and scale effortlessly.

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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

1package com.your.package
2
3import android.net.Uri
4import android.os.Bundle
5import androidx.appcompat.app.AppCompatActivity
6import com.pspdfkit.ui.PdfActivityIntentBuilder
7
8// We need to use a Compat activity for the PdfFragment.
9class MainActivity : AppCompatActivity() {
10    override fun onCreate(savedInstanceState: Bundle?) {
11        super.onCreate(savedInstanceState)
12
13        // Get the document path from the application assets.
14        val documentUri = Uri.parse("file:///android_asset/document.pdf")
15
16        // Build the \`Intent\` for launching the \`PdfActivity\`.
17        val intent = PdfActivityIntentBuilder.fromUri(this, documentUri).build()
18
19        // Launch the activity.
20        startActivity(intent)
21    }
22}

1package com.your.package;
2
3import android.content.Intent;
4import android.net.Uri;
5import android.os.Bundle;
6import androidx.appcompat.app.AppCompatActivity;
7import com.pspdfkit.ui.PdfActivityIntentBuilder;
8
9// We need to use a Compat activity for the PdfFragment.
10public class MainActivity extends AppCompatActivity {
11    @Override
12    protected void onCreate(Bundle savedInstanceState) {
13        super.onCreate(savedInstanceState);
14
15        // Get the document path from the application assets.
16        final Uri documentUri = Uri.parse("file:///android_asset/document.pdf");
17
18        // Build the \`Intent\` for launching the \`PdfActivity\`.
19        final Intent intent = PdfActivityIntentBuilder.fromUri(this, documentUri).build();
20
21        // Launch the activity.
22        startActivity(intent);
23    }
24}

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 file=@Example.pdf \\
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 file=@Example.pdf \\
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 index.html=@index.html
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 document=@Example1.docx
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 part1=@Example1.pdf
5	-F part2=@Example2.pdf
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 document=@Example.pdf
5	-F instructions='{
6			"parts": [
7				{ "file": "document" }
8			],
9			"actions": [{
10				"type": "ocr",
11				"language": "english"
12			}]
13		}'

Free trial

Building blocks to accelerate your digital transformation

#1 PDF SDK for document creation, editing, and conversion

Integrate secure M365 document solutions

Automate and track complex workflows

Leverage modern cloud-based document processing

Statistics

Years of industry experience

Reduction in engineering investment

Customers report faster time to market

Build faster. Scale smarter.

Want to see Nutrient in your web app today?

Process without the paper

Interested in automating your workflow?

Seamless document technology. All within M365.

Seamless document technology. All within M365.

Document Converter

Document Automation Server

Document Editor

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