diff --git a/EnvelopeGenerator.Web/Models/AnnotationParams.cs b/EnvelopeGenerator.Web/Models/AnnotationParams.cs
index f46486ac..2f6d6995 100644
--- a/EnvelopeGenerator.Web/Models/AnnotationParams.cs
+++ b/EnvelopeGenerator.Web/Models/AnnotationParams.cs
@@ -1,7 +1,9 @@
 namespace EnvelopeGenerator.Web.Models;
 
-public class AnnotationParams: Annotation
+public class AnnotationParams
 {
+    private Annotation? DefaultAnnotation { get; init; }
+
     private readonly Dictionary<string, Annotation> _annots = new();
 
     public required Dictionary<string, Annotation> Annots
@@ -14,17 +16,21 @@ public class AnnotationParams: Annotation
             foreach (var name in _annots.Keys)
             {
                 #region set default values
-                if (_annots[name]._left == default)
-                    _annots[name]._left = Left;
+                if(DefaultAnnotation is not null)
+                {
+                    // To set default value, annotation must have default (0) value but default must has non-default value
+                    if (_annots[name]._left == default && DefaultAnnotation.Left != default)
+                        _annots[name]._left = DefaultAnnotation.Left;
 
-                if (_annots[name]._top == default)
-                    _annots[name]._top = Top;
+                    if (_annots[name]._top == default && DefaultAnnotation.Top != default)
+                        _annots[name]._top = DefaultAnnotation.Top;
 
-                if (_annots[name]._width == default)
-                    _annots[name]._width = Width;
+                    if (_annots[name]._width == default && DefaultAnnotation.Width != default)
+                        _annots[name]._width = DefaultAnnotation.Width;
 
-                if (_annots[name]._height == default)
-                    _annots[name]._height = Height;
+                    if (_annots[name]._height == default && DefaultAnnotation.Height != default)
+                        _annots[name]._height = DefaultAnnotation.Height;
+                }
                 #endregion
 
                 #region set bound annotations
diff --git a/EnvelopeGenerator.Web/appsettings.json b/EnvelopeGenerator.Web/appsettings.json
index 3bf5e281..68165506 100644
--- a/EnvelopeGenerator.Web/appsettings.json
+++ b/EnvelopeGenerator.Web/appsettings.json
@@ -151,6 +151,9 @@
   },
   "MainPageTitle": null,
   "AnnotationParams": {
+    "DefaultAnnotation": {
+
+    },
     "Annotations": {
       "Signature": {