diff --git a/CRSim.PlatformDiagram/PlatformDiagram.cs b/CRSim.PlatformDiagram/PlatformDiagram.cs
index 463c888..e53c393 100644
--- a/CRSim.PlatformDiagram/PlatformDiagram.cs
+++ b/CRSim.PlatformDiagram/PlatformDiagram.cs
@@ -8,14 +8,14 @@ using iText.Kernel.Pdf.Canvas;
 using iText.Layout;
 using iText.Layout.Element;
 using iText.Layout.Properties;
+using System.Reflection;
 
 namespace CRSim.PlatformDiagram
 {
     public class Generator
     {
-        public static void Generate(Station station, string savePath)
-        {
-            float PageWidth = 5000;
+        public static void Generate(Station station, string savePath, float pageWidth)
+        { 
             float Padding = 40;
             float HeaderHeight = 16;
             float PlatformTableVerticalMargin = 9;
@@ -31,7 +31,7 @@ namespace CRSim.PlatformDiagram
 
             int platformCount = station.Platforms.Count;
             float pageHeight = (Padding + TimelineHeight + PlatformTableVerticalMargin) * 2 + platformCount * PlatformHeight + HeaderHeight;
-            Document doc = new(pdf, new PageSize(PageWidth, pageHeight)); doc.SetMargins(Padding, Padding, Padding, Padding);
+            Document doc = new(pdf, new PageSize(pageWidth, pageHeight)); doc.SetMargins(Padding, Padding, Padding, Padding);
             var canvas = new PdfCanvas(pdf.AddNewPage());
             TimeSpan startTime = TimeSpan.FromHours(0);
             TimeSpan endTime = TimeSpan.FromHours(24);
@@ -44,7 +44,7 @@ namespace CRSim.PlatformDiagram
             // 绘制整条横线
             canvas.SetLineWidth(1f);
             var xStart = Padding + InfoBarWidth + PlatformTableHorizontalMargin - TimelineExtLength;
-            var xEnd = PageWidth - Padding;
+            var xEnd = pageWidth - Padding;
             var yTop = pageHeight - Padding - HeaderHeight - TimelineHeight;
             var yBottom = Padding + TimelineHeight;
             canvas.MoveTo(xStart, yTop).LineTo(xEnd, yTop).Stroke();
@@ -54,7 +54,7 @@ namespace CRSim.PlatformDiagram
             var xBase = Padding + InfoBarWidth + PlatformTableHorizontalMargin;
             yTop = pageHeight - Padding - HeaderHeight - TimelineHeight - PlatformTableVerticalMargin;
             yBottom = Padding + TimelineHeight + PlatformTableVerticalMargin;
-            var PlatformTableLength = PageWidth - Padding * 2 - InfoBarWidth - PlatformTableHorizontalMargin - TimelineExtLength;
+            var PlatformTableLength = pageWidth - Padding * 2 - InfoBarWidth - PlatformTableHorizontalMargin - TimelineExtLength;
             for (TimeSpan t = startTime; t <= endTime; t += TimeSpan.FromMinutes(intervalMin))
             {
                 float x = xBase + MapTime(t, startTime, endTime, PlatformTableLength);
@@ -221,7 +221,19 @@ namespace CRSim.PlatformDiagram
                 .SetFontSize(18)
                 .SetFontColor(ColorConstants.BLUE)
                 .SetMargins(0,0,0,0));
-            foreach(var kvp in platformHeights)
+
+            string text = $"使用 CRSim v{Assembly.GetExecutingAssembly().GetName().Version} 绘制";
+            float fontSize = 12f;
+            var para = new Paragraph(text)
+                .SetFont(font)
+                .SetFontSize(fontSize)
+                .SetFontColor(ColorConstants.BLUE)
+                .SetMargins(0, 0, 0, 0);
+            rect1 = new(pageWidth - Padding - font.GetWidth(text, fontSize), pageHeight - Padding, 500, HeaderHeight);
+            layoutCanvas = new Canvas(canvas, rect1);
+            layoutCanvas.Add(para);
+
+            foreach (var kvp in platformHeights)
             {
                 rect1 = new(Padding, kvp.Value + PlatformHeight / 2 - 10, InfoBarWidth, 20);
                 layoutCanvas = new Canvas(canvas, rect1);
diff --git a/CRSim/ViewModels/PlatformDiagramPageViewModel.cs b/CRSim/ViewModels/PlatformDiagramPageViewModel.cs
index bed237d..2ef27f7 100644
--- a/CRSim/ViewModels/PlatformDiagramPageViewModel.cs
+++ b/CRSim/ViewModels/PlatformDiagramPageViewModel.cs
@@ -9,7 +9,10 @@ public partial class PlatformDiagramPageViewModel(IDialogService _dialogService,
     public List<Station> Stations => _databaseService.GetAllStations();
 
     [ObservableProperty]
-    public partial bool IsSelected { get; set; } = false;
+    public partial bool Validated { get; set; } = false;
+
+    [ObservableProperty]
+    public partial int PageWidth { get; set; } = 5000;
 
     [RelayCommand]
     public void StationSelected(object s)
@@ -17,10 +20,14 @@ public partial class PlatformDiagramPageViewModel(IDialogService _dialogService,
         if(s is Station station)
         {
             SelectedStation = station;
-            IsSelected = true;
         }
+        Validate();
+    }
+    [RelayCommand]
+    public void Validate()
+    {
+        Validated = SelectedStation != null && PageWidth > 0;
     }
-
     [RelayCommand]
     public async Task Generate()
     {
@@ -30,7 +37,7 @@ public partial class PlatformDiagramPageViewModel(IDialogService _dialogService,
         }
         var path = _dialogService.SaveFile(".pdf", $"{SelectedStation.Name}站台占用图");
         if(string.IsNullOrEmpty(path) || SelectedStation == null) return;
-        await Task.Run(() => Generator.Generate(SelectedStation, path));
+        await Task.Run(() => Generator.Generate(SelectedStation, path,PageWidth));
     }
 
     public static bool CheckStation(Station station,out string detail)
diff --git a/CRSim/Views/PlatformDiagramPage.xaml b/CRSim/Views/PlatformDiagramPage.xaml
index a99b91b..d8160c5 100644
--- a/CRSim/Views/PlatformDiagramPage.xaml
+++ b/CRSim/Views/PlatformDiagramPage.xaml
@@ -22,18 +22,30 @@
                    Style="{StaticResource TitleTextBlockStyle}"/>
         <ScrollViewer Grid.Row="1" Padding="0,0,36,0">
             <StackPanel>
+                <TextBlock Text="参数配置" Style="{StaticResource SettingsSectionHeaderTextBlockStyle}" Margin="0,0,0,12"/>
+                <StackPanel Spacing="4" Orientation="Vertical" Margin="0,0,0,24">
+                    <controls:SettingsCard Header="车站" Description="选择目标车站。" HeaderIcon="{winui:FontIcon Glyph=&#xE825;}">
+                        <ComboBox ItemsSource="{x:Bind ViewModel.Stations}" DisplayMemberPath="Name" Name="StationsComboBox">
+                            <i:Interaction.Behaviors>
+                                <i:EventTriggerBehavior EventName="SelectionChanged">
+                                    <i:InvokeCommandAction  Command="{x:Bind ViewModel.StationSelectedCommand}" CommandParameter="{x:Bind StationsComboBox.SelectedItem, Mode=OneWay}"/>
+                                </i:EventTriggerBehavior>
+                            </i:Interaction.Behaviors>
+                        </ComboBox>
+                    </controls:SettingsCard>
+                    <controls:SettingsCard Header="页宽" Description="生成的 PDF 页面宽度。" HeaderIcon="{winui:FontIcon Glyph=&#xEF6B;}">
+                        <NumberBox Value="{x:Bind ViewModel.PageWidth, Mode=TwoWay}" Width="120">
+                            <i:Interaction.Behaviors>
+                                <i:EventTriggerBehavior EventName="ValueChanged">
+                                    <i:InvokeCommandAction Command="{x:Bind ViewModel.ValidateCommand}"/>
+                                </i:EventTriggerBehavior>
+                            </i:Interaction.Behaviors>
+                        </NumberBox>
+                    </controls:SettingsCard>
+                </StackPanel>
                 <TextBlock Text="操作" Style="{StaticResource SettingsSectionHeaderTextBlockStyle}" Margin="0,0,0,12"/>
-                <controls:SettingsCard Header="车站" Description="选择目标车站。" HeaderIcon="{winui:FontIcon Glyph=&#xE825;}">
-                    <ComboBox ItemsSource="{x:Bind ViewModel.Stations}" DisplayMemberPath="Name" Name="StationsComboBox"> 
-                        <i:Interaction.Behaviors>
-                            <i:EventTriggerBehavior EventName="SelectionChanged">
-                                <i:InvokeCommandAction  Command="{x:Bind ViewModel.StationSelectedCommand}" CommandParameter="{x:Bind StationsComboBox.SelectedItem, Mode=OneWay}"/>
-                            </i:EventTriggerBehavior>
-                        </i:Interaction.Behaviors>
-                    </ComboBox>
-                </controls:SettingsCard>
                 <controls:SettingsCard Margin="0,4,0,0" Header="生成并保存图示" Description="选择位置保存图示。" HeaderIcon="{winui:FontIcon Glyph=&#xE74E;}">
-                    <Button Content="生成" IsEnabled="{x:Bind ViewModel.IsSelected, Mode=OneWay}" Style="{StaticResource AccentButtonStyle}"
+                    <Button Content="生成" IsEnabled="{x:Bind ViewModel.Validated, Mode=OneWay}" Style="{StaticResource AccentButtonStyle}"
                             Command="{x:Bind ViewModel.GenerateCommand}"/>
                 </controls:SettingsCard>
             </StackPanel>