Table of contents navigation in SfPdfViewer
Use the table of contents (TOC) to jump to sections within a PDF. Each TOC entry maps to a location in the document; selecting one navigates to that destination.

Enable or disable both hyperlink and TOC navigation by setting the EnableHyperlink property. TOC entries are parsed from the PDF; if the document has no TOC, no entries appear.
@using Syncfusion.Blazor.SfPdfViewer
<SfPdfViewer2 Height="100%" Width="100%" DocumentPath="@DocumentPath" EnableHyperlink="true" />
@code{
public string DocumentPath { get; set; } = "wwwroot/Data/PDF_Succinctly.pdf";
}Control where external hyperlinks open by using the HyperlinkOpenState property (for example, a new tab). In-document TOC links always navigate within the viewer.
@using Syncfusion.Blazor.SfPdfViewer
<SfPdfViewer2 Height="100%"
Width="100%" DocumentPath="@DocumentPath"
EnableHyperlink="true"
HyperlinkOpenState="LinkTarget.NewTab" />
@code{
public string DocumentPath { get; set; } = "wwwroot/Data/PDF_Succinctly.pdf";
}