diff --git a/EnvelopeGenerator.Web/Models/Annotation.cs b/EnvelopeGenerator.Web/Models/Annotation.cs
index cb08d806..e909eddf 100644
--- a/EnvelopeGenerator.Web/Models/Annotation.cs
+++ b/EnvelopeGenerator.Web/Models/Annotation.cs
@@ -13,24 +13,24 @@ public record Annotation
     #endregion
 
     #region Layout
-    internal double _left = default;
+    internal double _marginLeft = default;
 
-    internal double _top = default;
+    internal double _marginTop = default;
 
     internal double _width = default;
 
     internal double _height = default;
-        
-    public double Left
+      
+    public double MarginLeft
     {
-        get => _left;
-        init => _left = value;
+        get => _marginLeft;
+        init => _marginLeft = value;
     }
 
-    public double Top
+    public double MarginTop
     {
-        get => _top;
-        init => _top = value;
+        get => _marginTop;
+        init => _marginTop = value;
     }
 
     public double Width
@@ -46,16 +46,16 @@ public record Annotation
     }
     #endregion
 
-    #region Pos
-    public double PosX => Left + (HorBoundAnnot?.HorBoundary ?? 0);
+    #region Position
+    public double Left => MarginLeft + (HorBoundAnnot?.HorBoundary ?? 0);
 
-    public double PosY => Top + (VerBoundAnnot?.VerBoundary ?? 0);
+    public double Top => MarginTop + (VerBoundAnnot?.VerBoundary ?? 0);
     #endregion
 
     #region Boundary
-    public double HorBoundary => Left + Width;
+    public double HorBoundary => MarginLeft + Width;
 
-    public double VerBoundary => Top + Height;
+    public double VerBoundary => MarginTop + Height;
     #endregion
 
     #region BoundAnnot
diff --git a/EnvelopeGenerator.Web/Models/AnnotationParams.cs b/EnvelopeGenerator.Web/Models/AnnotationParams.cs
index d52126f7..0a81004b 100644
--- a/EnvelopeGenerator.Web/Models/AnnotationParams.cs
+++ b/EnvelopeGenerator.Web/Models/AnnotationParams.cs
@@ -35,11 +35,11 @@ public class AnnotationParams
                 if(DefaultAnnotation is not null)
                 {
                     // To set default value, annotation must have default (0) value but default must has non-default value
-                    if (this[name]._left == default && DefaultAnnotation.Left != default)
-                        this[name]._left = DefaultAnnotation.Left;
+                    if (this[name]._marginLeft == default && DefaultAnnotation.MarginLeft != default)
+                        this[name]._marginLeft = DefaultAnnotation.MarginLeft;
 
-                    if (this[name]._top == default && DefaultAnnotation.Top != default)
-                        this[name]._top = DefaultAnnotation.Top;
+                    if (this[name]._marginTop == default && DefaultAnnotation.MarginTop != default)
+                        this[name]._marginTop = DefaultAnnotation.MarginTop;
 
                     if (this[name]._width == default && DefaultAnnotation.Width != default)
                         this[name]._width = DefaultAnnotation.Width;