Save File
PdfViewer enables you to save the loaded document on file system. This functionality can be easily wired to the UI using the related command or executed in code.
To open a save file dialog that allows you to choose a destination for the saved file on the file system, use the SaveAsCommandDescriptor and its command.
Executing the save as command in code
this.pdfViewer.CommandDescriptors.SaveAsCommandDescriptor.Command.Execute(null);
SaveAsCommandDescriptor can be wired to the UI using the following approach. The example shows how to bind the command of the SaveAsCommandDescriptor to the Command property of a RadButton control.
Binding a command to a button in XAML
<telerik:RadButton Content="Save As"
Command="{Binding ElementName=pdfViewer, Path=CommandDescriptors.SaveAsCommandDescriptor.Command}"/>
Save method of RadPdfViewer.
Saving file using the Save method
this.pdfViewer.Save(new FileStream("C:\temp\Sample.pdf", FileMode.CreateNew));