Thumbnail Preview in Our MAUI PDF Viewer

The thumbnail preview sidebar shows a scrollable list of page thumbnails, which can be used to navigate to pages and get an overview of the content of any part of a document.


The thumbnails sidebar can be shown by the user by selecting the thumbnails sidebar icon from the sidebar dropdown in the toolbar.

It can also be shown programmatically with the API:

<pspdfkit:PDFView x:Name="PDFView" SidebarMode="{Binding SelectedSidebarMode}" />
// ViewModel
public SidebarMode? SelectedSidebarMode
	get => _selectedSidebarMode;
  set => SetField(ref _selectedSidebarMode, value);

public void OpenDocumentOutlineSidebar() {
	SelectedSidebarMode = SidebarMode.Thumbnails;	

If you don’t want users to be able to open the thumbnails sidebar, you can hide the corresponding toolbar button by filtering it out from the default toolbar items:

// Find the item to remove.
var sidebarThumbnailsToggleButton = 
    item => item.GetType() == typeof(SidebarThumbnailsToggleButton));

// Remove the item.

The thumbnail view toolbar button can be styled with CSS using the public CSS class .PSPDFKit-Toolbar-Button-Sidebar-Thumbnails.

The thumbnail sidebar itself can also be customized with CSS by modifying the corresponding public CSS classes: