Events

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Updated on Dec 19, 2025

The KendoReact PDF Viewer component exposes several events to let you easily handle file operations logic in React apps. Below is a summary of the available events and their triggers:

• onLoad—Fires when a PDF document has been loaded.
• onError—Fires when an error occurs, for example, when the selected file cannot be read.
• onDownload—Fires when the download tool has been clicked. To prevent the download, return false.
• onPageChange—Fires when the page has changed.
• onZoom—Fires when the zoom level has changed.
• onRenderContent—Fires when the content component is about to be rendered.
• onRenderLoader—Fires when the loading indication component is about to be rendered.
• onRenderToolbar—Fires when the toolbar component is about to be rendered.

The following example demonstrates basic PDF Viewer events.

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Suggested Links

• React PDF Viewer
• API Reference of the KendoReact PDF Viewer