PSPDFKit 3.5 for Flutter Adds Instant Sync and Collaboration

We’re pleased to announce that PSPDFKit 3.5 for Flutter is now available. This release adds PSPDFKit Instant, our prebuilt synchronization solution for real-time collaboration. From now on, you can sync annotations across multiple concurrent users, devices, or sessions in real time.

PSPDFKit Instant offers developers a self-hosted solution that handles document viewing on any platform, data management, conflict resolution, version tracking, diffing, and merging. It’s a licensable component that’s included as part of PSPDFKit Server.

Key Capabilities

The key capabilities PSPDFKit Instant brings to our Flutter PDF SDK include:

• Real-time collaboration — Sync edits and annotations to a server or across devices

• Self-hosted — Maintain complete control over your data

• Device agnostic — Consistent UX across web, mobile, and desktop clients

• Conflict resolution — Handle simultaneous concurrent edits

• Secure authentication — Easy integration with existing systems

• Data management — Separate layer for annotation and form data

• User permissions — Fine-grained control over what users can see or edit

Easy Implementation

As an integral part of PSPDFKit for Flutter, you can start using PSPDFKit Instant with minimal configuration on your side. To learn about the requirements and get started, check out our guides. You’ll also find additional details about authentication, comments, delayed synchronization, and other components of PSPDFKit Instant. If you want to test out the functionality, check out our demo.

If you’re interested in PSPDFKit for Flutter, please contact our Sales team. For a complete list of features, please visit our product page. We’d love to hear about your use case and discuss how to best implement it.