PDF Viewer Navigation Pane

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The navigation pane displays thumbnails, bookmarks, attachments, and annotations. Click the corresponding tab in the navigation pane to open or close the built-in panels.

NavigationPane

Built-In Panels

Bookmarks

This panel displays bookmarks from the current PDF file.

BookmarksPanel

The Options drop-down list shows bookmark settings.

RuntimeBookmarkOptions

The table below describes the bookmark settings and lists the API used to specify the corresponding options in code.

Option Description API
Expand Current Bookmarks Expands the selected bookmark. PdfOutlinesExpandCurrentCommand
Collapse/Expand Top-Level Bookmarks Expands or collapses all bookmarks. PdfOutlinesExpandCollapseTopLevelCommand
Hide After Use Specifies whether to hide the panel after an outline was clicked. PdfOutlineViewerSettings.HideAfterUse
Text Size Gets or sets the size of bookmark nodes. PdfOutlineViewerSettings.TextSize
Wrap Long Bookmarks Specifies whether to wrap long bookmark names. PdfOutlineViewerSettings.UseOutlinesForeColor

Attachments

This panel displays the list of file attachments in the current PDF file.

Attachment

When you open an attachment, the Security Warning message appears. Handle the PdfViewer.FileAttachmentOpening event to hide the message box.

AttachmentWarning

Thumbnails

The Page Thumbnails panel displays page thumbnails.

PageThumbnails

The Options drop-down list shows thumbnail settings. This list can also be accessed from the panel’s context menu.

ThumbnailsOptions

Option Description Command
Print Page(s) Invokes the Print dialog to print pages that correspond to the selected thumbnails. If there are no selected thumbnails in the panel, all the pages are printed. PdfThumbnailsPrintPagesCommand
Enlarge Page Thumbnails Increases the page thumbnail size. PdfEnlargePageThumbnailsCommand
Reduce Page Thumbnails Decreases the page thumbnail size. PdfReducePageThumbnailsCommand

You can use the zoom slider or Ctrl+Mouse Wheel shortcut to enlarge/reduce thumbnails.

ThumbnailsZoomSlider

Comments

The Comments panel displays annotations and comments.

Comments

You can sort and filter comments by page, author, date, type, check and review status.

Click an annotation to add a reply to it. Double-click the annotation to edit its contents.

Edit and Reply

Right-click the annotation and select Set Status to specify the review status. Select None to remove the status.

Customization

The PDF Viewer ships with the following API used to customize the navigation pane:

Action Properties Events
Change the pane’s visibility PdfViewer.NavigationPaneVisibility
PdfViewer.NavigationPaneInitialVisibility
PdfViewer.NavigationPaneVisibilityChanged
Display only specific panels PdfViewer.NavigationPanePageVisibility
Change active page PdfViewer.NavigationPaneInitialSelectedPage
PdfViewer.NavigationPaneSelectedPage
PdfViewer.NavigationPaneSelectedPageChanged
Specify the pane’s width PdfViewer.NavigationPaneWidth
PdfViewer.NavigationPaneMinWidth

Note

The NavigationPaneSelectedPage property does not select a page on the navigation pane if the PdfViewer.NavigationPanePageVisibility property hides the selected page or if it is set to a panel that is hidden (for example, if the document does not contain bookmarks).

See Also