Unload the PDF document from Viewer in Blazor PDF Viewer Component

12 Aug 20211 minute to read

The PDF Viewer component will automatically unload and clear the resources occupied by the PDF document when the control is disposed. Also, when loading another PDF file, the resources occupied by previous loaded file in viewer will be automatically unloaded and cleared.

If you want to unload and clear the resources occupied by the PDF file programmatically, invoke the Unload() method as shown below.

@using Syncfusion.Blazor.Buttons
@using Syncfusion.Blazor.PdfViewerServer

<SfButton @onclick="OnClick">Unload Document</SfButton>
<SfPdfViewerServer @ref="@viewer" Height="500px" Width="1060px" DocumentPath="@DocumentPath" />

@code{
        SfPdfViewerServer viewer;
        public void OnClick(MouseEventArgs args)
        {
            viewer.Unload();
        }
    public string DocumentPath { get; set; } = "wwwroot/data/PDF_Succinctly.pdf";
}

You can refer to our Blazor PDF Viewer feature tour page for its groundbreaking feature representations. You can also explore our Blazor PDF Viewer example to understand how to explains core features of PDF Viewer.