diff --git a/CHANGELOG.md b/CHANGELOG.md
index a453c5a..1b9b038 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 # [v1.0.5-SNAPSHOT] - 2020-12-9
 Mongo Id in record
 Mongo Concessioni interface 
+Added Files.fixFileNAme
+
 
 # [v1.0.4-SNAPSHOT] - 2020-12-9
 Projects Rest Interface
diff --git a/src/main/java/org/gcube/application/geoportal/common/utils/Files.java b/src/main/java/org/gcube/application/geoportal/common/utils/Files.java
index 7c99a38..b730201 100644
--- a/src/main/java/org/gcube/application/geoportal/common/utils/Files.java
+++ b/src/main/java/org/gcube/application/geoportal/common/utils/Files.java
@@ -37,5 +37,12 @@ public class Files {
 		
 	}
 	
-	
+	public static String fixFilename(String toFix) {
+		if(toFix.contains(".")) {
+			String prefix=toFix.substring(toFix.lastIndexOf("."));
+			toFix=toFix.substring(0,toFix.lastIndexOf("."));
+			return toFix.toLowerCase().replaceAll("[\\*\\+\\/\\\\ \\[\\]\\(\\)\\.\\\"\\:\\;\\|]","_")+prefix;
+		}
+		return toFix.toLowerCase().replaceAll("[\\*\\+\\/\\\\ \\[\\]\\(\\)\\.\\\"\\:\\;\\|]","_");
+	}
 }