PDF Viewer Toolbar Commands
- 3 minutes to read
The built-in PDF viewer toolbar allows you to show a search box, switch display modes, and invoke Thumbnail and Outline views. If the default toolbar does not meet your requirements, you can set the ShowToolbar to false to hide it. To implement a custom toolbar, you can use the PDF viewer’s commands listed below:
Show, Share and Close Commands
- ShowOpenFileDialog
- Returns the command that invokes the file explorer to select a PDF file to open.
- ShareDocument
- Returns the command that invokes a share UI prompting the user to choose an app to share with.
- CloseDocument
- Returns the command that closes the document.
Navigation Commands
- GoToFirstPage
- Returns the command that navigates the document to the first page.
- GoToLastPage
- Returns the command that navigates the document to the last page.
- GoToNextPage
- Returns the command that navigates the document to the next page.
- GoToPreviousPage
- Returns the command that navigates the document to the previous page.
Search Commands
- SearchBackward
- Returns the command that searches the text string passed in parameters backward in the document starting from the previous page.
- SearchForward
- Returns the command that searches the text string passed in parameters forward in the document starting from the current page.
Show Outlines and Thumbnails
- ToggleOutlines
- Returns the command that invokes the built-in Outlines page.
- ToggleThumbnails
- Returns the command that invokes the built-in Thumbnails page.
Zoom Commands
- ZoomIn
- Returns the command that zooms in the current document.
- ZoomOut
- Returns the command that zooms out of the current document.
Selection Commands
- ClearSelection
- Returns the command that resets the selection.
- CopySelection
- Returns the command that copies the selected content to the clipboard.
Text Effect Commands
- HighlightSelectedText
- Returns the command that highlights the selected text with a filled rectangle.
- SquiggleSelectedText
- Returns the command that underlines the selected text with a squiggle line.
- StrikethroughSelectedText
- Returns the command that applies strikethrough to the selected text.
- UnderlineSelectedText
- Returns the command that underlines the selected text with a straight line.
Annotation Commands
- DeleteSelectedAnnotation
- Returns the command that removes the selected annotation.
- SelectNextAnnotation
- Returns the command that selects the next annotation in the current document.
- SelectPreviousAnnotation
- Returns the command that selects the previous annotation in the current document.
- ToggleComments
- Returns the command that invokes the built-in view that lists annotations with associated comments.
Example
The following example implements a custom toolbar that allows users to invoke the system file explorer:
<Grid RowDefinitions="40,*">
<dxm:DXToolbar Grid.Row="0">
<dxm:ToolbarButton Icon="open" Command="{Binding Commands.ShowOpenFileDialog, Source={x:Reference pdfViewer}}"/>
</dxm:DXToolbar>
<dxpdf:PdfViewer x:Name="pdfViewer" Grid.Row="1" ShowToolbar="False"/>
</Grid>