React PDF Digital Signature Library

PSPDFKit for Web is a JavaScript library for signing PDF documents with an electronic signature or with encrypted certificate-based digital signatures. It is fully compatible with React and offers developers an API to create, validate, and display digitally signed documents, as well as a beautiful UI for hand-drawn electronic signatures in any React-based web app.

Try for Free Launch Demo

PSPDFKit SDKs are deployed in some of the world’s most popular applications, such as those made by Autodesk, Disney, UBS, Dropbox, IBM, and Lufthansa.

Key Capabilities

• Create digital signatures — Digitally sign by using a private key

• Validate digital signatures — Verify the certificate and signature

• eSignatures — Add drawn, scanned, or typed electronic signatures

• Signature storage — Store locally or remotely for future reuse

• Events — Trigger workflows or automations

• Customizable UI — Hide buttons, match your look & feel, and more

• Client-side — Sign PDFs directly in the browser (no server needed)

• Extendable — Add forms, annotation, editing, and more

Guides for Signatures

Introduction to Signatures
Learn about the basics of PDF signatures

Add an Ink Electronic Signature
How to add an electronic signature (eSignature) to a PDF document

Electronic Signature Storage
How to implement a mechanism for storing signatures

Digital Signatures Lifecycle
How to add digital signatures to a PDF document and timestamp or validate them

Supported Digital Signature Methods
Learn about the supported digital signing methods and algorithms

Electronically Sign with a Certificate
How to use electronic signatures and digital signatures together

Fill and Sign Forms
How to programmatically or manually fill and sign forms in a PDF

FAQ

How do I implement digital signatures in a React app using PSPDFKit?

To implement digital signatures, integrate PSPDFKit into your React app, load the document, and use the signature tool provided by PSPDFKit to enable signing and verification within your app.

What are the benefits of digital signatures in web applications?

Digital signatures provide security and authenticity, ensuring that documents are signed by the intended parties and have not been tampered with, which is crucial for legal and business transactions.

How can I verify digital signatures in a React application?

Use PSPDFKit’s API to validate signatures by checking the signature integrity and verifying the certificate chain against trusted authorities, ensuring the document’s authenticity.

Can PSPDFKit handle multiple signatures in a single document in React?

Yes, PSPDFKit supports multiple signatures within a document, allowing users to add and validate multiple signatures, which is essential for collaborative or multi-party agreements.

What challenges might I face when implementing digital signatures with React and PSPDFKit?

Challenges include ensuring cross-browser compatibility, managing certificate storage, and handling complex signature workflows. Use PSPDFKit’s comprehensive API and documentation to address these challenges effectively.