kmpdfkit_demo/Demo/Examples/Compdfkit_Tools/Encryption/UserPasswordControl.xaml

<UserControl x:Class="Compdfkit_Tools.PDFControl.UserPasswordControl"
             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"
             xmlns:common="clr-namespace:Compdfkit_Tools.Common"
             mc:Ignorable="d"
             Height="130" Width="368">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="363*"/>
            <ColumnDefinition Width="5*"/>
        </Grid.ColumnDefinitions>
        <Grid Background="White" Margin="20,0,0,0"  Panel.ZIndex="1" Height="20" HorizontalAlignment="Left" VerticalAlignment="Top">
            <TextBlock Foreground="#001A4E" Text="Open the Documentn" FontWeight="Bold" FontSize="16"></TextBlock>
        </Grid>
        <Border Margin="12,10,7,12" BorderBrush="#33000000" BorderThickness="1">
            <Grid Margin="20,0,20,15">
                <Grid.RowDefinitions>
                    <RowDefinition Height="*"></RowDefinition>
                    <RowDefinition Height="Auto"></RowDefinition>
                </Grid.RowDefinitions>
                <StackPanel Orientation="Horizontal">
                    <CheckBox Width="20" Height="20" Margin="0,0,0,0"></CheckBox>
                    <TextBlock Height="20" FontFamily="Segoe UI" FontSize="14" Text="Require a password to open the document"></TextBlock>
                </StackPanel>

                <StackPanel Orientation="Horizontal" Grid.Row="1" Margin="20,0,0,-5">
                    <TextBlock Height="25" FontFamily="Segoe UI" FontSize="14" Text="Open Password"/>
                    <common:PasswordBoxControl Margin="10,0,0,0" Watermark="Enter Password" Height="41" Width="170"></common:PasswordBoxControl>
                </StackPanel>
            </Grid>
        </Border>
    </Grid>
</UserControl>