diff --git a/Back-End/Subscriptions/templates/pdfs/bilan_competences.html b/Back-End/Subscriptions/templates/pdfs/bilan_competences.html
index 6e64148..529c8c4 100644
--- a/Back-End/Subscriptions/templates/pdfs/bilan_competences.html
+++ b/Back-End/Subscriptions/templates/pdfs/bilan_competences.html
@@ -44,7 +44,7 @@
                 <th colspan="4" style="text-align:center">{{ domaine.nom }}</th>
             </tr>
             <tr>
-                <th class="competence-header" style="min-width: 120px;">Compétence</th>
+                <th class="competence-header" style="min-width: 120px;">Compétences</th>
                 <th class="competence-header" style="width: 28px; text-align:center;">1</th>
                 <th class="competence-header" style="width: 28px; text-align:center;">2</th>
                 <th class="competence-header" style="width: 28px; text-align:center;">3</th>
diff --git a/Back-End/Subscriptions/views/student_competencies_views.py b/Back-End/Subscriptions/views/student_competencies_views.py
index bbfa831..b803249 100644
--- a/Back-End/Subscriptions/views/student_competencies_views.py
+++ b/Back-End/Subscriptions/views/student_competencies_views.py
@@ -104,6 +104,7 @@ class StudentCompetencyListCreateView(APIView):
             return JsonResponse({"error": "Une liste est attendue."}, status=400)
         updated = []
         errors = []
+        updated_competency_ids = set()
         for item in data:
             comp_id = item.get("competenceId")
             grade = item.get("grade")
@@ -113,7 +114,6 @@ class StudentCompetencyListCreateView(APIView):
                 errors.append({"competenceId": comp_id, "error": "champ manquant"})
                 continue
             try:
-                # Ajoute le filtre student_id
                 sc = StudentCompetency.objects.get(
                     establishment_competency_id=comp_id,
                     student_id=student_id,
@@ -122,14 +122,19 @@ class StudentCompetencyListCreateView(APIView):
                 sc.score = grade
                 sc.save()
                 updated.append(comp_id)
+                updated_competency_ids.add(sc.id)
             except StudentCompetency.DoesNotExist:
                 errors.append({"competenceId": comp_id, "error": "not found"})
 
         # Génération du PDF si au moins une compétence a été mise à jour
         if updated:
             student = Student.objects.get(id=student_id)
-            # Reconstituer la structure "domaines" pour la période concernée uniquement
-            student_competencies = StudentCompetency.objects.filter(student=student, period=period).select_related(
+            # On ne prend que les StudentCompetency mis à jour pour la génération du PDF
+            student_competencies = StudentCompetency.objects.filter(
+                student=student,
+                period=period,
+                id__in=updated_competency_ids
+            ).select_related(
                 'establishment_competency',
                 'establishment_competency__competency',
                 'establishment_competency__competency__category',
@@ -137,6 +142,7 @@ class StudentCompetencyListCreateView(APIView):
                 'establishment_competency__custom_category',
                 'establishment_competency__custom_category__domain',
             )
+
             result = []
             domaines = Domain.objects.all()
             for domaine in domaines:
@@ -183,14 +189,10 @@ class StudentCompetencyListCreateView(APIView):
             }
 
             pdf_result = render_to_pdf('pdfs/bilan_competences.html', context)
-            
 
             try:
                 filename = f"bilan_competences_{student.last_name}_{student.first_name}_{period}.pdf"
-                # Vérifier si un bilan existe déjà pour cet élève et cette période
-                existing_bilan = BilanCompetence.objects.filter(student=student, period=period).first()
-                if existing_bilan:
-                    # Supprimer le fichier physique si présent
+                for existing_bilan in BilanCompetence.objects.filter(student=student, period=period):
                     if existing_bilan.file and existing_bilan.file.name:
                         file_path = existing_bilan.file.path
                         if os.path.exists(file_path):
@@ -209,7 +211,6 @@ class StudentCompetencyListCreateView(APIView):
             except Exception as e:
                 logger.error(f"Erreur lors de la sauvegarde du fichier PDF : {e}")
                 raise
-
         return JsonResponse({"updated": updated, "errors": errors}, status=200)
 
 @method_decorator(csrf_protect, name='dispatch')
diff --git a/Front-End/src/app/[locale]/admin/grades/studentCompetencies/page.js b/Front-End/src/app/[locale]/admin/grades/studentCompetencies/page.js
index 612faa0..433bb5c 100644
--- a/Front-End/src/app/[locale]/admin/grades/studentCompetencies/page.js
+++ b/Front-End/src/app/[locale]/admin/grades/studentCompetencies/page.js
@@ -47,12 +47,6 @@ export default function StudentCompetenciesPage() {
     }
   }, [studentCompetencies.data]);
 
-  const handleScoreChange = (competencyId, score) => {
-    setCompetencies((prev) =>
-      prev.map((comp) => (comp.id === competencyId ? { ...comp, score } : comp))
-    );
-  };
-
   const handleGradeChange = (competenceId, level) => {
     setGrades((prev) => ({
       ...prev,
@@ -61,12 +55,14 @@ export default function StudentCompetenciesPage() {
   };
 
   const handleSubmit = () => {
-    const data = Object.entries(grades).map(([competenceId, score]) => ({
-      studentId,
-      competenceId,
-      grade: score,
-      period: period,
-    }));
+    const data = Object.entries(grades)
+      .filter(([_, score]) => [1, 2, 3].includes(score))
+      .map(([competenceId, score]) => ({
+        studentId,
+        competenceId,
+        grade: score,
+        period: period,
+      }));
     editStudentCompetencies(data, csrfToken)
       .then(() => {
         showNotification(