kmpdfkit_demo/compdfkit_demo_windows/compdfkit/compdfkit-tools/Edit/PDFTextEdit/PDFTextEditUI/CPDFTextStyleUI.xaml

<UserControl x:Class="compdfkit_tools.Edit.CPDFTextStyleUI"
             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.Edit"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="auto"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
        </Grid.RowDefinitions>
        <Border>
            <TextBlock VerticalAlignment="Center" Margin="0,10,10,0" FontSize="14" Foreground="#43474D">Text:</TextBlock>
        </Border>
      
        <Grid Grid.Row="1" Margin="0,10,0,0">
            <Grid.RowDefinitions>
                <RowDefinition Height="auto"></RowDefinition>
                <RowDefinition Height="auto"></RowDefinition>
            </Grid.RowDefinitions>

            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="auto"></ColumnDefinition>
                <ColumnDefinition Width="*"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            
            <ComboBox Grid.ColumnSpan="2" Name="FontNameComboBox" Width="228" Height="28" FontSize="14" SelectionChanged="FontNameComboBox_SelectionChanged" BorderThickness="0"
                      VerticalContentAlignment="Center" Foreground="#43474D">
                <ComboBoxItem Content="Courier"></ComboBoxItem>
                <ComboBoxItem Content="Helvetica"></ComboBoxItem>
                <ComboBoxItem Content="Times"></ComboBoxItem>
            </ComboBox>

            <ComboBox Name="FontStyleBox" Width="148" Height="28" Grid.Row="1" Margin="0,8,0,0" BorderThickness="0" Foreground="#43474D" FontSize="14" 
                       SelectionChanged="FontStyleBox_SelectionChanged">
                <ComboBoxItem IsSelected="True">Regular</ComboBoxItem>
                <ComboBoxItem>Bold</ComboBoxItem>
                <ComboBoxItem>Italic</ComboBoxItem>
                <ComboBoxItem>Bold Italic</ComboBoxItem>
            </ComboBox>

            <Grid Grid.Row="1" Grid.Column="1" Margin="8,8,0,0">
                <ComboBox Name="FontSizeComboBox" Width="72" Height="28" BorderThickness="0" MaxDropDownHeight="200" Foreground="#43474D" FontSize="14"
                          SelectionChanged="FontSizeComboBox_SelectionChanged">
                    <ComboBoxItem>6</ComboBoxItem>
                    <ComboBoxItem>8</ComboBoxItem>
                    <ComboBoxItem>9</ComboBoxItem>
                    <ComboBoxItem>10</ComboBoxItem>
                    <ComboBoxItem>12</ComboBoxItem>
                    <ComboBoxItem>14</ComboBoxItem>
                    <ComboBoxItem>18</ComboBoxItem>
                    <ComboBoxItem>20</ComboBoxItem>
                    <ComboBoxItem>22</ComboBoxItem>
                    <ComboBoxItem>24</ComboBoxItem>
                    <ComboBoxItem>26</ComboBoxItem>
                    <ComboBoxItem>28</ComboBoxItem>
                    <ComboBoxItem>32</ComboBoxItem>
                    <ComboBoxItem>36</ComboBoxItem>
                    <ComboBoxItem>48</ComboBoxItem>
                    <ComboBoxItem>72</ComboBoxItem>
                </ComboBox>
                <TextBox Name="FontSizeTextBox" IsHitTestVisible="False" Width="72" Height="28" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" BorderThickness="0"
                             IsReadOnly="True" Background="#ECECEC" Padding="0,0,15,0" FontSize="14"></TextBox>
                <Path Fill="#43474D" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,5,0" IsHitTestVisible="False">
                    <Path.Data>
                        M0.5 0.510248L4.5041 5.5L8.5 0.5L0.5 0.510248Z
                    </Path.Data>
                </Path>
            </Grid>

        </Grid>
    </Grid>
</UserControl>