DxPdfViewer.ZoomLevel Property

Specifies the document’s zoom level.

Namespace: DevExpress.Blazor.PdfViewer

Assembly: DevExpress.Blazor.PdfViewer.v25.1.dll

NuGet Package: DevExpress.Blazor.PdfViewer

Declaration

[DefaultValue(-1)]
[Parameter]
public double ZoomLevel { get; set; }

Property Value

Type	Default	Description
Double	-1	The zoom level as a percentage: -1 to fit a whole single page into the PDF Viewer. -2 to fit the document into the PDF Viewer’s current width. A ZoomConstants enumeration value.

Remarks

Use the ZoomLevel property to specify the document’s initial zoom level. Set this property to one of the following values:

• A positive value to specify the zoom level as a percentage.
• A ZoomConstants enumeration value.
• -1 to fit a whole single page into the PDF Viewer (corresponds to the ZoomConstants.WholePage option).
• -2 to fit the document into the PDF Viewer’s current width (corresponds to the ZoomConstants.PageWidth option).

Example

The following code snippet sets the initial zoom level to 125%:

@using System.Reflection

<DxPdfViewer @ref="pdfViewer"
             DocumentContent="@DocumentContent"
             ZoomLevel="1.25"/>

@code {
    DxPdfViewer pdfViewer { get; set; }
    byte[] DocumentContent { get; set; }

    protected override async Task OnInitializedAsync() {
        Assembly assembly = Assembly.GetExecutingAssembly();
        Stream stream = assembly.GetManifestResourceStream("PdfSample.DataSources.Invoice.pdf");

        using (var binaryReader = new BinaryReader(stream)) {
            DocumentContent = binaryReader.ReadBytes((int)stream.Length);
        }
    }
}