JavaScript PDF 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 offers developers an API to create, validate, and display digitally signed documents, as well as a beautiful UI for hand-drawn electronic signatures.
PSPDFKit SDKs are deployed in some of the world’s most popular applications, such as those made by Autodesk, Disney, DocuSign, Dropbox, IBM, and Lufthansa.
Key Capabilities
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Create digital signatures — Digitally sign by using a private key
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Validate digital signatures — Verify the certificate and signature
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eSignatures — Add drawn, scanned, or typed electronic signatures
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Signature storage — Store locally or remotely for future reuse
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Events — Trigger workflows or automations
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Customizable UI — Hide buttons, match your look & feel, and more
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Client-side — Sign PDFs directly in the browser (no server needed)
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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
Electronically Sign with a Certificate
How to use electronic signatures and digital signatures together
Supported Digital Signature Methods
Learn about the supported digital signing methods and algorithms
Generate a Certificate
How to generate a self-signed certificate for testing purposes
Add a Digital Signature
How to add a digital signature to a PDF document
Validate Digital Signatures
How to validate digital signatures
Add a Signature Field
How to programmatically add new signature form fields to a PDF
Fill and Sign Forms
How to programmatically or manually fill and sign forms in a PDF
Framework Support
PSPDFKit for Web is compatible with any JavaScript framework, including React, Angular, Vue.js, Svelte, TypeScript, Next.js, Nuxt.js, and Blazor. It’s also compatible with ASP.NET, PHP, Laravel, and HTML5. It just needs a DOM container to append the viewer, which is possible with any framework.
Integrations
PSPDFKit for Web is compatible with SharePoint, Microsoft Teams, Microsoft OneDrive, and Salesforce.
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