Load desired PDF for initial loading in Blazor SfPdfViewer Component
7 Oct 20241 minute to read
You can load your own PDF document for initial loading as well as change the document at runtime in the Blazor SfPdfViewer component.To load your desired PDF document for initial display, you need to set the DocumentPath property of the SfPdfViewer component to the path of your PDF file.
@inject HttpClient Http;
@using Syncfusion.Blazor.Buttons;
@using Syncfusion.Blazor.SfPdfViewer
<SfButton OnClick="LoadAnotherDocument">Load Another Document</SfButton>
<SfPdfViewer2 Height="100%"
Width="100%"
DocumentPath="@DocumentPath">
</SfPdfViewer2>
@code
{
public String DocumentPath = "Data/PDF_Succinctly.pdf";
private async Task LoadAnotherDocument()
{
//Sends a GET request to a specified Uri and return the response body as a byte array.
byte[] byteArray = await Http.GetByteArrayAsync("Data/FormFillingDocument.pdf");
//Converts the byte array into base64 string.
string base64String = Convert.ToBase64String(byteArray);
//Sets the base64 string as document path for the PDF Viewer.
DocumentPath = "data:application/pdf;base64," + base64String;
}
}
In the above code, When the Load Another Document
button is clicked, the LoadAnotherDocument
method is triggered. This method uses the HttpClient service to retrieve the desired PDF document as a byte
array. The byte array is then converted to a base64
string, and the DocumentPath property is updated with the new document path.
With this implementation, users can click the Load Another Document
button to dynamically change the PDF document displayed in the Blazor SfPdfViewer component.