prs/prs.mobile.new/PRS.Mobile/CustomControls/PDFViewer/PDFViewer.xaml

<?xml version="1.0" encoding="utf-8" ?>
<local:BasePage xmlns:local="clr-namespace:PRS.Mobile" xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
             xmlns:syncfusion="clr-namespace:Syncfusion.SfPdfViewer.XForms;assembly=Syncfusion.SfPdfViewer.XForms"
             
             x:Class="PRS.Mobile.PDFViewer"
             Title="PDF Viewer">
    
    <local:BasePage.PrimaryMenu>
        <ImageButton x:Name="_share" Source="share.png" Clicked="ShareBtn_Clicked" Margin="5" />
        <ImageButton x:Name="_print" Source="printer.png" Clicked="PrintBtn_Clicked" Margin="5" />
    </local:BasePage.PrimaryMenu>
    
    <local:BasePage.PageContent>
        <syncfusion:SfPdfViewer x:Name="pdfViewerControl" IsToolbarVisible="False" PageViewMode="PageByPage" />
    </local:BasePage.PageContent>
</local:BasePage>