diff --git a/Ink Canvas/Converters/PositionConverters.cs b/Ink Canvas/Converters/PositionConverters.cs
deleted file mode 100644
index d97093e4..00000000
--- a/Ink Canvas/Converters/PositionConverters.cs	
+++ /dev/null
@@ -1,35 +0,0 @@
-using System;
-using System.Globalization;
-using System.Windows.Data;
-
-namespace Ink_Canvas.Converters
-{
-    /// <summary>
-    /// 位置计算转换器
-    /// </summary>
-    public class PositionConverters
-    {
-        /// <summary>
-        /// 减法转换器
-        /// </summary>
-        public class SubtractConverter : IValueConverter
-        {
-            public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
-            {
-                if (value is double baseValue && parameter is string paramStr)
-                {
-                    if (double.TryParse(paramStr, out double subtractValue))
-                    {
-                        return baseValue - subtractValue;
-                    }
-                }
-                return value;
-            }
-
-            public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
-            {
-                throw new NotImplementedException();
-            }
-        }
-    }
-}