kmpdfkit_demo/Demo/Examples/Compdfkit_Tools/Annotation/PDFAnnotationPanel/PDFAnnotationUI/CPDFFreeTextUI.xaml

<UserControl x:Class="Compdfkit_Tools.PDFControlUI.CPDFFreeTextUI"
             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:local="clr-namespace:Compdfkit_Tools.PDFControlUI"
             xmlns:cpdfcommon="clr-namespace:Compdfkit_Tools.Common"
             xmlns:cpdftools="clr-namespace:Compdfkit_Tools.PDFControl"
             mc:Ignorable="d" 
             d:DesignHeight="800" d:DesignWidth="300">
    <ScrollViewer VerticalScrollBarVisibility="Auto"> 
        <Grid Background="#FAFCFF">
            <StackPanel Orientation="Vertical">
                <Border BorderThickness="1" BorderBrush="#1A000000">
                    <Grid  Height="40" Background="White" >
                        <TextBlock x:Name="TitileTextBlock" Text="Text Box" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="16" FontFamily="Segoe UI"></TextBlock>
                    </Grid>
                </Border>
                <StackPanel Orientation="Vertical" Height="150">
                    <cpdftools:CPDFAnnotationPreviewerControl x:Name="CPDFAnnotationPreviewerControl" Height="100" Margin="16"></cpdftools:CPDFAnnotationPreviewerControl>
                </StackPanel>
                <StackPanel Height="75" Margin="5">
                    <TextBlock Text="Font Color"></TextBlock>
                    <cpdfcommon:ColorPickerControl x:Name="ColorPickerControl"></cpdfcommon:ColorPickerControl>
                </StackPanel>
                <StackPanel Height="75" Margin="5">
                    <TextBlock Text="Opacity"></TextBlock>
                    <cpdfcommon:CPDFOpacityControl x:Name="CPDFOpacityControl"></cpdfcommon:CPDFOpacityControl>
                </StackPanel>
                <StackPanel Height="120" Margin="5">
                    <TextBlock Text="Font Style"></TextBlock>
                    <cpdfcommon:CPDFFontControl x:Name="CPDFFontControl" Width="228"></cpdfcommon:CPDFFontControl>
                </StackPanel>
                <StackPanel Height="200" Margin="5">
                    <TextBlock Text="Note"></TextBlock>
                    <TextBox Height="150"  x:Name="NoteTextBox" TextChanged="NoteTextBox_TextChanged" TextWrapping="Wrap" AcceptsReturn="True"></TextBox>
                </StackPanel>
            </StackPanel>
        </Grid>
    </ScrollViewer>
</UserControl>