diff --git a/APIControllers/PictureUpload.cs b/APIControllers/PictureUpload.cs
index db6e257..dae9f77 100644
--- a/APIControllers/PictureUpload.cs
+++ b/APIControllers/PictureUpload.cs
@@ -1,6 +1,6 @@
 using Microsoft.AspNetCore.Mvc;
 using NeDvachAPI.DBControllers;
-using SkiaSharp;
+
 
 namespace NeDvachAPI.Controllers
 {
@@ -13,46 +13,30 @@ namespace NeDvachAPI.Controllers
         [HttpPost(Name = "UploadPicture")]
         public async Task<JsonResult> ReceivePost([FromForm] IFormFile PostPicture)
         {
-            var supportedTypes = new[] { ".jpg", ".png", ".jpeg" };
+            
             string receivedFileName = PostPicture.FileName;
             string fName = Path.GetFileNameWithoutExtension(receivedFileName);
             string fExtention = Path.GetExtension(receivedFileName);
             string previevFileName = fName + 's' + fExtention;
 
             Console.WriteLine("Расширение файла: " + fExtention);
-
-            if (supportedTypes.Contains(fExtention.ToLower()))  //file type check
+            
+            if (ImageController.CheckExtention(fExtention))  //file type check
             {
                 ///Local Buffer File Part
                 string filePath;
                 string previevPath;
                 filePath = Directory.GetCurrentDirectory() + "\\Buffer\\" + receivedFileName;
                 previevPath = Directory.GetCurrentDirectory() + "\\Buffer\\" + previevFileName;
+                //creating original file buffer
                 Stream picBuffer = new FileStream(filePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                 PostPicture.CopyTo(picBuffer);
                 picBuffer.Close();
-                ///resize part
-
-                bool resizeImage(string picPath, string smallPath, int width, int height)
-                {
-                    var dstInfo = new SKImageInfo(height, width);
-                    var bitmap = SKBitmap.Decode(picPath);
-
-                    var image = SKImage.FromBitmap(bitmap.Resize(dstInfo, SKFilterQuality.Medium));
-                    var data = image.Encode(SKEncodedImageFormat.Jpeg, 90);
-
-                    using (var stream = new FileStream(smallPath, FileMode.Create, FileAccess.Write))
-                        data.SaveTo(stream);
-
-                    data.Dispose();
-                    image.Dispose();
-                    bitmap.Dispose();
-                    return true;
-                }
-                resizeImage(filePath, previevPath, 300, 400);
+                //resizing
+                ImageController.ResizeImage(filePath, previevPath, 300, 400);
                 ///MinIo part
-                await MinIOchat.PictureUpload(previevPath, receivedFileName, "thread-pics-small");
-                JsonResult picAdress = new(await MinIOchat.PictureUpload(filePath, receivedFileName, "thread-pics"));
+                await MinIOchat.PictureUpload(previevPath, receivedFileName, "thread-pics-small"); //upload thumbnail
+                JsonResult picAdress = new(await MinIOchat.PictureUpload(filePath, receivedFileName, "thread-pics")); //upload fullsize
                 Console.WriteLine("Загружен файл:" + "http://static.vdk2ch.ru:15555/thread-pics/" + receivedFileName);
                 return picAdress;
             }
diff --git a/DBControllers/ImageController.cs b/DBControllers/ImageController.cs
new file mode 100644
index 0000000..4209072
--- /dev/null
+++ b/DBControllers/ImageController.cs
@@ -0,0 +1,36 @@
+
+using SkiaSharp;
+
+namespace NeDvachAPI.DBControllers
+{
+    public class ImageController
+    {
+        public static bool CheckExtention(string extentionToCheck)
+        {
+            var supportedTypes = new[] { ".jpg", ".png", ".jpeg" };
+            if (supportedTypes.Contains(extentionToCheck.ToLower()))
+            {
+                return true;
+            }
+            else return false;
+        }
+
+    public static bool ResizeImage(string picPath, string smallPath, int width, int height)
+        {
+            var dstInfo = new SKImageInfo(height, width);
+            var bitmap = SKBitmap.Decode(picPath);
+
+            var image = SKImage.FromBitmap(bitmap.Resize(dstInfo, SKFilterQuality.Medium));
+            var data = image.Encode(SKEncodedImageFormat.Jpeg, 90);
+
+             using (var stream = new FileStream(smallPath, FileMode.Create, FileAccess.Write))
+                 data.SaveTo(stream);
+
+            data.Dispose();
+            image.Dispose();
+            bitmap.Dispose();
+            return true;
+        }
+    }
+}
+