---
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title: Dynamsoft Document Viewer API Reference - Interface UpdatedSource
keywords: Documentation, Dynamsoft Document Viewer, API Reference, Interface UpdatedSource
breadcrumbText: Interface UpdatedSource
description: Dynamsoft Document Viewer Documentation API Reference Interface UpdatedSource Page
---

# UpdatedSource

## Syntax

```typescript
interface UpdatedSource {
    fileData: Blob;
    fileIndex?: number;
}
```