Right-click the document and select the Marquee Zoom item in the context menu to activate the tool. The Marquee Zoom tool allows end users to zoom a particular part of the page. You can press Ctrl+ Plus and Ctrl+ Minus, or hold Ctrl and rotate the mouse wheel to zoom a page. Use buttons on the Zoom ribbon group on the PDF Viewer tab to zoom a document. The event args allows you to obtain current zoom mode and zoom factor. When the document’s zoom is changed, the PdfViewer.ZoomChanged event occurs. Private Sub PdfViewer_DocumentChanged(ByVal sender As Object, ByVal e As PdfDocumentChangedEventArgs) Private void PdfViewer_DocumentChanged(object sender, PdfDocumentChangedEventArgs e) The code sample below changes the zoom factor to 150 percent. When the property is set to PdfZoomMode.Custom, the PdfViewer.ZoomFactor property defines the document zoom factor value. The following properties allow you to zoom in and out of a document. You can also use Ctrl + Shift + Add and Ctrl + Shift + Subtract shortcuts. Rotate a Document: Built-in UI CommandsĮnd users can use Rotate Clockwise and Rotate Counterclockwise items from the context menu to rotate document pages. Please refer to the DevExpress Subscription page for pricing information. The PDF Document API is a part of the Office File API or Universal subscription only, and is not included in the WinForms subscription. The PDF Viewer does not provide and API or User Interface features to rotate individual pages.

Shortcut to rotate pdf document