SharePoint PDF Digital Signature Library

PSPDFKit for SharePoint is a JavaScript library for signing PDF documents with an electronic signature or with encrypted certificate-based digital signatures. It is fully compatible with SharePoint 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 SharePoint Online and SharePoint on-premises.

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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

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