diff --git a/CHANGELOG.md b/CHANGELOG.md
index f59dc8a..818ab54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.10.7] - 2026-09-17
+
+### Fixed
+- **createTorrentSum**: Corregido error (`OSError: [Errno 22] Invalid argument`) al calcular la suma de verificación MD5 de los ficheros de imagen cuando estos ocupan menos de 1 MB, ajustando dinámicamente el `seek_offset` al tamaño real del fichero.
+
 ## [0.10.6] - 2026-07-27
 
 ### Added
diff --git a/bin/createTorrentSum.py b/bin/createTorrentSum.py
index 766f53e..e75dffa 100644
--- a/bin/createTorrentSum.py
+++ b/bin/createTorrentSum.py
@@ -96,8 +96,13 @@ def get_md5_sum(file_path, megabytes=1):
         Se utiliza para crear el archivo ".sum" (para transferencias Unicast y Multicast).
     """
     hash_md5 = hashlib.md5()
+    file_size = os.path.getsize(file_path)
+    seek_offset = -megabytes * 1024 * 1024
+    if file_size < (-seek_offset):
+        seek_offset = -file_size
+        
     with open(file_path, "rb") as f:
-        f.seek(-megabytes * 1024 * 1024, os.SEEK_END)
+        f.seek(seek_offset, os.SEEK_END)
         data = f.read(megabytes * 1024 * 1024)
         hash_md5.update(data)
     return hash_md5.hexdigest()