kmpdfkit_demo/compdfkit_demo_windows/compdfkit/compdfkit-tools/PDFView/PDFViewControl/PDFViewControl.xaml

<UserControl x:Class="compdfkit_tools.PDFControl.PDFViewControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
              xmlns:cpdfcommon="clr-namespace:compdfkit_tools.Common;assembly=com.compdfkit.tools"
             xmlns:local="clr-namespace:compdfkit_tools.PDFControl"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
</UserControl>