Discover Instant JSON for efficient annotation management
PSPDFKit Processor has been deprecated and replaced by Document Engine. 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).
Instant JSON is a format we created for bringing annotations and bookmarks into a modern format while keeping all important properties to make the Instant JSON spec work with PDF. The format is fully documented and can be easily converted to XFDF to make it interoperable.
It’s designed for synchronizing annotations to a server, and across users, devices, or sessions. It can be used without licensing PSPDFKit Instant or Document Engine.
Key Capabilities
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Annotation diff – Built-in support for comparing changes
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Deleted annotations – Can store deleted annotations, unlike XFDF
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Minimal syntax – Easy to understand and use
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Compact file size – Faster loading, less storage & network transfer
Guides for Instant JSON
How It Works
Learn how PSPDFKit applies Instant JSON files to documents
Annotations Schema
Learn about the Instant JSON schema used for annotations
File Attachments Schema
Learn about the Instant JSON schema used for file attachments
Form Field Values Schema
Learn about the Instant JSON schema used for form field values
Form Fields Schema
Learn about the Instant JSON schema used for form fields
Bookmarks Schema
Learn about the Instant JSON schema used for bookmarks
Actions Schema
Learn about the Instant JSON schema used for actions
Comments Schema
Learn about the Instant JSON schema used for comments
Reference for Instant JSON
Please refer to Instant JSON Reference for a full description of the Instant JSON format.