What Is PSPDFKit Server?


PSPDFKit Server has been deprecated and replaced by PSPDFKit Document Engine. All PSPDFKit Server and PSPDFKit for Web Server-Backed licenses will work as before and be supported until 15 May 2024 (we will contact you about license migration). To start using Document Engine, refer to the migration guide. With Document Engine, you’ll have access to robust new capabilities (read the blog for more information).

PSPDFKit Server is an optional server-side component that can be used by PSPDFKit for Web, iOS, and Android. It’s deployed on your infrastructure as a Docker container.

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.


PSPDFKit for Web Server-Backed mode for SharePoint, Microsoft Teams, Microsoft OneDrive, and Salesforce is currently in development. To get an email when we launch this feature, or to learn more, please get in touch.

Key Capabilities

  • Instant annotation sync — To a server, users, devices, or sessions

  • Self-hosted — Maintain complete control over your data

  • Microsoft Office — Open or convert Word, Excel, and PowerPoint

  • Document streaming — Faster performance for large documents

  • Secure authentication — Easy integration with existing systems

  • User permissions — Fine-grained control

  • PDF generation — Create fillable PDF forms from HTML

  • OCR — Convert scanned documents to searchable PDFs

PSPDFKit Instant

PSPDFKit Instant is a licensable component that’s included as part of PSPDFKit Server. It’s our prebuilt solution for synchronizing annotations across multiple concurrent users, devices, or sessions.

Launch Instant Synchronization Demo

Instant consists of three parts: the PSPDFKit Server backend that synchronizes documents and annotations and manages authentication; the PSPDFKit Instant component that handles conflict resolution, version tracking, diffing, and merging; and the web, mobile, and desktop SDKs that integrate into your app.

Learn more about PSPDFKit Instant for Web, iOS, and Android.

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