diff --git a/samples/GroupDocs.Viewer.UI.Sample.AzureCustomDomain/GroupDocs.Viewer.UI.Sample.AzureCustomDomain.csproj b/samples/GroupDocs.Viewer.UI.Sample.AzureCustomDomain/GroupDocs.Viewer.UI.Sample.AzureCustomDomain.csproj
index 1218b36..7670baa 100644
--- a/samples/GroupDocs.Viewer.UI.Sample.AzureCustomDomain/GroupDocs.Viewer.UI.Sample.AzureCustomDomain.csproj
+++ b/samples/GroupDocs.Viewer.UI.Sample.AzureCustomDomain/GroupDocs.Viewer.UI.Sample.AzureCustomDomain.csproj
@@ -18,7 +18,7 @@
-
+
diff --git a/samples/GroupDocs.Viewer.UI.Sample.CrossPlatform/GroupDocs.Viewer.UI.Sample.CrossPlatform.csproj b/samples/GroupDocs.Viewer.UI.Sample.CrossPlatform/GroupDocs.Viewer.UI.Sample.CrossPlatform.csproj
index 58994ed..7d306cc 100644
--- a/samples/GroupDocs.Viewer.UI.Sample.CrossPlatform/GroupDocs.Viewer.UI.Sample.CrossPlatform.csproj
+++ b/samples/GroupDocs.Viewer.UI.Sample.CrossPlatform/GroupDocs.Viewer.UI.Sample.CrossPlatform.csproj
@@ -18,7 +18,7 @@
-
+
diff --git a/samples/GroupDocs.Viewer.UI.Sample.ViewAsPng/GroupDocs.Viewer.UI.Sample.ViewAsPng.csproj b/samples/GroupDocs.Viewer.UI.Sample.ViewAsPng/GroupDocs.Viewer.UI.Sample.ViewAsPng.csproj
index 36ac37f..ca41c29 100644
--- a/samples/GroupDocs.Viewer.UI.Sample.ViewAsPng/GroupDocs.Viewer.UI.Sample.ViewAsPng.csproj
+++ b/samples/GroupDocs.Viewer.UI.Sample.ViewAsPng/GroupDocs.Viewer.UI.Sample.ViewAsPng.csproj
@@ -18,7 +18,7 @@
-
+
diff --git a/samples/GroupDocs.Viewer.UI.Sample/GroupDocs.Viewer.UI.Sample.csproj b/samples/GroupDocs.Viewer.UI.Sample/GroupDocs.Viewer.UI.Sample.csproj
index dc1c286..737bd0f 100644
--- a/samples/GroupDocs.Viewer.UI.Sample/GroupDocs.Viewer.UI.Sample.csproj
+++ b/samples/GroupDocs.Viewer.UI.Sample/GroupDocs.Viewer.UI.Sample.csproj
@@ -18,7 +18,7 @@
-
+