diff --git a/lib/ui/add_page/widgets/form_popup.dart b/lib/ui/add_page/widgets/form_popup.dart
index 341b247..7f6af10 100644
--- a/lib/ui/add_page/widgets/form_popup.dart
+++ b/lib/ui/add_page/widgets/form_popup.dart
@@ -243,7 +243,7 @@ class _FullyManualState extends State<_FullyManual> {
                 return null;
               },
               onSaved: (newValue) {
-                title = newValue;
+                title = newValue?.trim();
               },
             ),
             SizedBox(height: 10),
@@ -259,7 +259,7 @@ class _FullyManualState extends State<_FullyManual> {
                 return null;
               },
               onSaved: (newValue) {
-                author = newValue;
+                author = newValue?.trim();
               },
             ),
             SizedBox(height: 10),
diff --git a/lib/ui/add_page/widgets/owner_popup.dart b/lib/ui/add_page/widgets/owner_popup.dart
index c7b76cd..bdc17b7 100644
--- a/lib/ui/add_page/widgets/owner_popup.dart
+++ b/lib/ui/add_page/widgets/owner_popup.dart
@@ -87,7 +87,7 @@ class _OwnerPopupState extends State<OwnerPopup> {
                             ),
                             onSaved: (newValue) {
                               setState(() {
-                                lastName = newValue;
+                                lastName = newValue?.trim();
                               });
                             },
                             validator: (value) {
@@ -105,7 +105,7 @@ class _OwnerPopupState extends State<OwnerPopup> {
                             ),
                             onSaved: (newValue) {
                               setState(() {
-                                firstName = newValue;
+                                firstName = newValue?.trim();
                               });
                             },
                             validator: (value) {
@@ -123,7 +123,7 @@ class _OwnerPopupState extends State<OwnerPopup> {
                             ),
                             onSaved: (newValue) {
                               setState(() {
-                                contact = newValue;
+                                contact = newValue?.trim();
                               });
                             },
                             validator: (value) {
diff --git a/lib/ui/bal_page/widget/pending/bal_pending_screen.dart b/lib/ui/bal_page/widget/pending/bal_pending_screen.dart
index a6f0769..2e57c22 100644
--- a/lib/ui/bal_page/widget/pending/bal_pending_screen.dart
+++ b/lib/ui/bal_page/widget/pending/bal_pending_screen.dart
@@ -134,7 +134,7 @@ class _EditPopup extends State<EditPopup> {
                     return null;
                   },
                   onSaved: (newValue) {
-                    name = newValue;
+                    name = newValue?.trim();
                   },
                 ),
                 Row(
diff --git a/lib/ui/home_page/widgets/create_confirmation_popup.dart b/lib/ui/home_page/widgets/create_confirmation_popup.dart
index d9205c4..31e9425 100644
--- a/lib/ui/home_page/widgets/create_confirmation_popup.dart
+++ b/lib/ui/home_page/widgets/create_confirmation_popup.dart
@@ -61,7 +61,7 @@ class _CreateConfirmationPopupState extends State<CreateConfirmationPopup> {
                     return null;
                   },
                   onSaved: (newValue) {
-                    name = newValue;
+                    name = newValue?.trim();
                   },
                 ),
                 Row(