kmpdfkit_demo/compdfkit_demo_windows/compdfkit/compdfkit-tools/Annotation/PDFAnnotationPanel/PDFAnnotationUI/CPDFMarkupUI.xaml

<UserControl x:Class="compdfkit_tools.PDFControlUI.CPDFMarkupUI"
             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"
             xmlns:cpdftools="clr-namespace:compdfkit_tools.PDFControl"
             mc:Ignorable="d" 
               d:DesignHeight="800" d:DesignWidth="300">
    <Grid Background="#FAFCFF">
        <Grid.RowDefinitions>
            <RowDefinition Height="170"></RowDefinition>
            <RowDefinition Height="80"></RowDefinition>
            <RowDefinition Height="80"></RowDefinition>
            <RowDefinition Height="200"></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <StackPanel Orientation="Vertical">
            <Border BorderThickness="1" BorderBrush="#1A000000">
                <Grid  Height="40" Background="White" >
                    <TextBlock x:Name="TitleTextBlock"  HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="16" FontFamily="Segoe UI"></TextBlock>
                </Grid>
            </Border>
            <cpdftools:CPDFAnnotationPreviewerControl x:Name="CPDFAnnotationPreviewerControl" Height="100" Margin="16"></cpdftools:CPDFAnnotationPreviewerControl>
            </StackPanel>
                <StackPanel Grid.Row="1" Margin="5">
                    <TextBlock Text="Color"></TextBlock>
            <cpdfcommon:ColorPickerControl x:Name="ColorPickerControl" TransparentBtnProperty="Collapsed"></cpdfcommon:ColorPickerControl>
                </StackPanel>
                <StackPanel Grid.Row="2" Margin="5">
                    <TextBlock Text="Opacity"></TextBlock>
                    <cpdfcommon:CPDFOpacityControl x:Name="CPDFOpacityControl"></cpdfcommon:CPDFOpacityControl>
                </StackPanel>
                <StackPanel Grid.Row="3" Margin="5">
                    <TextBlock Text="Note"></TextBlock>
            <TextBox Height="150"  x:Name="NoteTextBox" TextChanged="NoteTextBox_TextChanged" TextWrapping="Wrap" AcceptsReturn="True"></TextBox>
                </StackPanel>
    </Grid>
</UserControl>