diff --git a/src/main/java/local/epul4a/fotosharing/controller/PhotoController.java b/src/main/java/local/epul4a/fotosharing/controller/PhotoController.java
index 3049b02..8e3b2c5 100644
--- a/src/main/java/local/epul4a/fotosharing/controller/PhotoController.java
+++ b/src/main/java/local/epul4a/fotosharing/controller/PhotoController.java
@@ -148,6 +148,11 @@ public class PhotoController {
         model.addAttribute("currentPage", page);
 
         String currentUser = (auth != null ? auth.getName() : null);
+        boolean canComment = partageService.canComment(id, currentUser);
+        boolean canAdmin = partageService.canAdmin(id, currentUser);
+
+        model.addAttribute("canComment", canComment);
+        model.addAttribute("canAdmin", canAdmin);
         model.addAttribute("currentUser", currentUser);
 
         model.addAttribute("partages",
@@ -181,6 +186,7 @@ public class PhotoController {
     }
 
 
+
     @GetMapping("/photo/{id}/unshare/{email}")
     public String unshare(@PathVariable Long id, @PathVariable String email) {
 
diff --git a/src/main/java/local/epul4a/fotosharing/repository/PartageRepository.java b/src/main/java/local/epul4a/fotosharing/repository/PartageRepository.java
index d23cc12..9c3a998 100644
--- a/src/main/java/local/epul4a/fotosharing/repository/PartageRepository.java
+++ b/src/main/java/local/epul4a/fotosharing/repository/PartageRepository.java
@@ -1,16 +1,15 @@
 package local.epul4a.fotosharing.repository;
 
 import local.epul4a.fotosharing.model.Partage;
-import org.springframework.data.domain.Page;
-import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface PartageRepository extends JpaRepository<Partage, Long> {
-    // liste des partages pour une photo
+
     List<Partage> findByPhoto_Id(Long photoId);
-    // vérifier si un utilisateur a accès partagé
     boolean existsByPhoto_IdAndUtilisateur_Email(Long photoId, String email);
     List<Partage> findByUtilisateur_Email(String email);
+    Optional<Partage> findByPhoto_IdAndUtilisateur_Email(Long photoId, String email);
 }
diff --git a/src/main/java/local/epul4a/fotosharing/security/SecurityService.java b/src/main/java/local/epul4a/fotosharing/security/SecurityService.java
index 39f20fb..79d7681 100644
--- a/src/main/java/local/epul4a/fotosharing/security/SecurityService.java
+++ b/src/main/java/local/epul4a/fotosharing/security/SecurityService.java
@@ -1,48 +1,23 @@
 package local.epul4a.fotosharing.security;
 
-import local.epul4a.fotosharing.model.Photo;
-import local.epul4a.fotosharing.repository.PartageRepository;
-import local.epul4a.fotosharing.repository.PhotoRepository;
-import org.springframework.stereotype.Service;
-
-import javax.naming.ldap.PagedResultsControl;
-import java.util.Optional;
+import local.epul4a.fotosharing.service.PartageService;
 import org.springframework.security.core.Authentication;
-
+import org.springframework.stereotype.Service;
 
 @Service("securityService")
 public class SecurityService {
 
-    private final PhotoRepository photoRepository;
-    private final PartageRepository partageRepository;
-
-    public SecurityService(PhotoRepository photoRepository, PartageRepository partageRepository) {
-        this.photoRepository = photoRepository;
-        this.partageRepository = partageRepository;
+    private final PartageService partageService;
+    public SecurityService(PartageService partageService) {
+        this.partageService = partageService;
     }
 
     public boolean canAccessPhoto(Authentication authentication, Long photoId) {
-        Photo photo = photoRepository.findById(photoId).orElse(null);
-        if (photo == null) return false;
-        // PUBLIC → accès total
-        if (photo.getVisibilite() == Photo.Visibilite.PUBLIC) {
-            return true;
-        }
-        // Pas connecté → rejeter tout sauf PUBLIC
         if (authentication == null || !authentication.isAuthenticated()) {
             return false;
         }
         String email = authentication.getName();
-        // Propriétaire → OK
-        if (photo.getProprietaire().getEmail().equals(email)) {
-            return true;
-        }
-        // SHARED → vérifier dans la table PARTAGE
-        if (photo.getVisibilite() == Photo.Visibilite.SHARED) {
-            return partageRepository.existsByPhoto_IdAndUtilisateur_Email(photoId, email);
-        }
-        // PRIVATE par défaut → refus
-        return false;
+        // Vérification basée sur les ACL (READ / COMMENT / ADMIN)
+        return partageService.canView(photoId, email);
     }
 }
-
diff --git a/src/main/java/local/epul4a/fotosharing/service/PartageService.java b/src/main/java/local/epul4a/fotosharing/service/PartageService.java
index 3f7e6a2..6a4a4e4 100644
--- a/src/main/java/local/epul4a/fotosharing/service/PartageService.java
+++ b/src/main/java/local/epul4a/fotosharing/service/PartageService.java
@@ -1,10 +1,17 @@
 package local.epul4a.fotosharing.service;
 
 import local.epul4a.fotosharing.dto.PartageDTO;
+import local.epul4a.fotosharing.model.Partage;
+
 import java.util.List;
+import java.util.Optional;
 
 public interface PartageService {
     void share(Long photoId, String targetEmail, String permission, String ownerEmail);
     void unshare(Long photoId, String targetEmail);
     List<PartageDTO> getPartagesForPhoto(Long photoId);
+    boolean canView(Long photoId, String email);
+    boolean canComment(Long photoId, String email);
+    boolean canAdmin(Long photoId, String email);
+
 }
diff --git a/src/main/java/local/epul4a/fotosharing/service/impl/PartageServiceImpl.java b/src/main/java/local/epul4a/fotosharing/service/impl/PartageServiceImpl.java
index 910e13d..e37e73e 100644
--- a/src/main/java/local/epul4a/fotosharing/service/impl/PartageServiceImpl.java
+++ b/src/main/java/local/epul4a/fotosharing/service/impl/PartageServiceImpl.java
@@ -75,4 +75,50 @@ public class PartageServiceImpl implements PartageService {
         if (partage != null)
             partageRepository.delete(partage);
     }
+
+    @Override
+    public boolean canView(Long photoId, String email) {
+        Photo photo = photoRepository.findById(photoId).orElse(null);
+        if (photo == null) return false;
+        // Propriétaire => accès total
+        if (photo.getProprietaire().getEmail().equals(email))
+            return true;
+        // Photo publique => tout le monde peut voir
+        if (photo.getVisibilite() == Photo.Visibilite.PUBLIC)
+            return true;
+        Partage partage = partageRepository
+                .findByPhoto_IdAndUtilisateur_Email(photoId, email)
+                .orElse(null);
+        return partage != null; // READ / COMMENT / ADMIN
+    }
+
+    @Override
+    public boolean canComment(Long photoId, String email) {
+        Photo photo = photoRepository.findById(photoId).orElse(null);
+        if (photo == null) return false;
+        // propriétaire = admin total
+        if (photo.getProprietaire().getEmail().equals(email))
+            return true;
+        Partage partage = partageRepository
+                .findByPhoto_IdAndUtilisateur_Email(photoId, email)
+                .orElse(null);
+        if (partage == null) return false;
+        return partage.getPermission() == Partage.Permission.COMMENT
+                || partage.getPermission() == Partage.Permission.ADMIN;
+    }
+
+    @Override
+    public boolean canAdmin(Long photoId, String email) {
+        Photo photo = photoRepository.findById(photoId).orElse(null);
+        if (photo == null) return false;
+        // propriétaire = admin total
+        if (photo.getProprietaire().getEmail().equals(email))
+            return true;
+        Partage partage = partageRepository
+                .findByPhoto_IdAndUtilisateur_Email(photoId, email)
+                .orElse(null);
+        if (partage == null) return false;
+        return partage.getPermission() == Partage.Permission.ADMIN;
+    }
+
 }
diff --git a/src/main/resources/templates/photo-detail.html b/src/main/resources/templates/photo-detail.html
index fa57d9d..674152a 100644
--- a/src/main/resources/templates/photo-detail.html
+++ b/src/main/resources/templates/photo-detail.html
@@ -23,6 +23,7 @@
 
 <!-- Infos -->
 <ul>
+    <li><strong>Votre rôle :</strong><span th:text="${photo.proprietaire.email == currentUser ? 'Propriétaire' : (canAdmin ? 'Admin' : (canComment ? 'Commentateur' : 'Lecteur'))}"></span></li>
     <li><strong>Nom original :</strong> <span th:text="${photo.nomFichierOriginal}"></span></li>
     <li><strong>Date upload :</strong> <span th:text="${photo.dateUpload}"></span></li>
     <li><strong>Visibilité :</strong> <span th:text="${photo.visibilite}"></span></li>
@@ -34,31 +35,35 @@
 <ul>
     <li th:each="p : ${partages}">
         <span th:text="${p.utilisateur.email}"></span>
-        —
-        <span th:text="${p.permission}"></span>
-        <a th:href="@{'/photo/' + ${photo.id} + '/unshare/' + ${p.utilisateur.email}}"
-           style="color:red;">Retirer</a>
+        <span> - <b th:text="${p.permission}"></b></span>
+        <!-- ADMIN OU PROPRIÉTAIRE : peut retirer -->
+        <a th:if="${canAdmin}"
+           th:href="@{'/photo/' + ${photo.id} + '/unshare/' + ${p.utilisateur.email}}"
+           style="color:red; margin-left:10px;">Retirer</a>
     </li>
 </ul>
-<h2>Partager la photo</h2>
-<div th:if="${currentUser == photo.proprietaire.email}">
+
+<!-- Formulaire d’ajout visible uniquement en ADMIN ou PROPRIÉTAIRE -->
+<div th:if="${canAdmin}">
+    <h3>Partager la photo</h3>
     <form th:action="@{'/photo/' + ${photo.id} + '/share'}" method="post">
         <label>Email de l'utilisateur :</label>
         <input type="email" name="email" required />
         <label>Permission :</label>
         <select name="permission">
-            <option value="READ">Lecture</option>
-            <option value="COMMENT">Commenter</option>
-            <option value="ADMIN">Administrer</option>
+            <option value="READ">Lecture seule</option>
+            <option value="COMMENT">Commentaire autorisé</option>
+            <option value="ADMIN">Administrateur</option>
         </select>
         <button type="submit">Partager</button>
     </form>
 </div>
-<div th:if="${currentUser != photo.proprietaire.email}">
-    <em>Seul le propriétaire peut partager cette photo.</em>
+<div th:if="${!canAdmin}">
+    <em>Vous n’avez pas les droits de gestion du partage.</em>
 </div>
 
 
+
 <!-- Commentaires -->
 <h2>Commentaires</h2>
 <div th:each="c : ${commentairesPage.content}">
@@ -76,17 +81,22 @@
 </div>
 
 <!-- Formulaire d'ajout de commentaire -->
-<div th:if="${currentUser}">
-    <h3>Ajouter un commentaire</h3>
-    <form th:action="@{'/photo/' + ${photo.id} + '/comment'}" method="post">
-        <textarea name="contenu" rows="3" cols="50"></textarea><br/>
-        <button type="submit">Envoyer</button>
-    </form>
-</div>
-
+<!-- Si pas connecté -->
 <div th:if="${currentUser == null}">
     <p><a th:href="@{/login}">Connectez-vous</a> pour commenter.</p>
 </div>
+<!-- Si connecté mais pas autorisé -->
+<div th:if="${currentUser != null and !canComment}">
+    <em>Vous pouvez consulter cette photo, mais pas commenter.</em>
+</div>
+<!-- Si COMMENT ou ADMIN ou PROPRIÉTAIRE -->
+<div th:if="${canComment}">
+    <h3>Ajouter un commentaire</h3>
+    <form th:action="@{'/photo/' + ${photo.id} + '/comment'}" method="post">
+        <textarea name="contenu" rows="3" cols="50" required></textarea><br/>
+        <button type="submit">Envoyer</button>
+    </form>
+</div>
 
 <p>
     <a th:href="@{'/photo/' + ${photo.id} + '/raw'}" target="_blank">Voir en grande taille</a>
diff --git a/target/classes/local/epul4a/fotosharing/controller/PhotoController.class b/target/classes/local/epul4a/fotosharing/controller/PhotoController.class
index c6787a5..4ee2d5a 100644
Binary files a/target/classes/local/epul4a/fotosharing/controller/PhotoController.class and b/target/classes/local/epul4a/fotosharing/controller/PhotoController.class differ
diff --git a/target/classes/local/epul4a/fotosharing/repository/PartageRepository.class b/target/classes/local/epul4a/fotosharing/repository/PartageRepository.class
index 936e85a..b6fe434 100644
Binary files a/target/classes/local/epul4a/fotosharing/repository/PartageRepository.class and b/target/classes/local/epul4a/fotosharing/repository/PartageRepository.class differ
diff --git a/target/classes/local/epul4a/fotosharing/security/SecurityService.class b/target/classes/local/epul4a/fotosharing/security/SecurityService.class
index 6312180..7cd567e 100644
Binary files a/target/classes/local/epul4a/fotosharing/security/SecurityService.class and b/target/classes/local/epul4a/fotosharing/security/SecurityService.class differ
diff --git a/target/classes/local/epul4a/fotosharing/service/PartageService.class b/target/classes/local/epul4a/fotosharing/service/PartageService.class
index cc07511..f8a7628 100644
Binary files a/target/classes/local/epul4a/fotosharing/service/PartageService.class and b/target/classes/local/epul4a/fotosharing/service/PartageService.class differ
diff --git a/target/classes/local/epul4a/fotosharing/service/impl/PartageServiceImpl.class b/target/classes/local/epul4a/fotosharing/service/impl/PartageServiceImpl.class
index 8336e35..c76cfe2 100644
Binary files a/target/classes/local/epul4a/fotosharing/service/impl/PartageServiceImpl.class and b/target/classes/local/epul4a/fotosharing/service/impl/PartageServiceImpl.class differ
diff --git a/target/classes/templates/photo-detail.html b/target/classes/templates/photo-detail.html
index fa57d9d..674152a 100644
--- a/target/classes/templates/photo-detail.html
+++ b/target/classes/templates/photo-detail.html
@@ -23,6 +23,7 @@
 
 <!-- Infos -->
 <ul>
+    <li><strong>Votre rôle :</strong><span th:text="${photo.proprietaire.email == currentUser ? 'Propriétaire' : (canAdmin ? 'Admin' : (canComment ? 'Commentateur' : 'Lecteur'))}"></span></li>
     <li><strong>Nom original :</strong> <span th:text="${photo.nomFichierOriginal}"></span></li>
     <li><strong>Date upload :</strong> <span th:text="${photo.dateUpload}"></span></li>
     <li><strong>Visibilité :</strong> <span th:text="${photo.visibilite}"></span></li>
@@ -34,31 +35,35 @@
 <ul>
     <li th:each="p : ${partages}">
         <span th:text="${p.utilisateur.email}"></span>
-        —
-        <span th:text="${p.permission}"></span>
-        <a th:href="@{'/photo/' + ${photo.id} + '/unshare/' + ${p.utilisateur.email}}"
-           style="color:red;">Retirer</a>
+        <span> - <b th:text="${p.permission}"></b></span>
+        <!-- ADMIN OU PROPRIÉTAIRE : peut retirer -->
+        <a th:if="${canAdmin}"
+           th:href="@{'/photo/' + ${photo.id} + '/unshare/' + ${p.utilisateur.email}}"
+           style="color:red; margin-left:10px;">Retirer</a>
     </li>
 </ul>
-<h2>Partager la photo</h2>
-<div th:if="${currentUser == photo.proprietaire.email}">
+
+<!-- Formulaire d’ajout visible uniquement en ADMIN ou PROPRIÉTAIRE -->
+<div th:if="${canAdmin}">
+    <h3>Partager la photo</h3>
     <form th:action="@{'/photo/' + ${photo.id} + '/share'}" method="post">
         <label>Email de l'utilisateur :</label>
         <input type="email" name="email" required />
         <label>Permission :</label>
         <select name="permission">
-            <option value="READ">Lecture</option>
-            <option value="COMMENT">Commenter</option>
-            <option value="ADMIN">Administrer</option>
+            <option value="READ">Lecture seule</option>
+            <option value="COMMENT">Commentaire autorisé</option>
+            <option value="ADMIN">Administrateur</option>
         </select>
         <button type="submit">Partager</button>
     </form>
 </div>
-<div th:if="${currentUser != photo.proprietaire.email}">
-    <em>Seul le propriétaire peut partager cette photo.</em>
+<div th:if="${!canAdmin}">
+    <em>Vous n’avez pas les droits de gestion du partage.</em>
 </div>
 
 
+
 <!-- Commentaires -->
 <h2>Commentaires</h2>
 <div th:each="c : ${commentairesPage.content}">
@@ -76,17 +81,22 @@
 </div>
 
 <!-- Formulaire d'ajout de commentaire -->
-<div th:if="${currentUser}">
-    <h3>Ajouter un commentaire</h3>
-    <form th:action="@{'/photo/' + ${photo.id} + '/comment'}" method="post">
-        <textarea name="contenu" rows="3" cols="50"></textarea><br/>
-        <button type="submit">Envoyer</button>
-    </form>
-</div>
-
+<!-- Si pas connecté -->
 <div th:if="${currentUser == null}">
     <p><a th:href="@{/login}">Connectez-vous</a> pour commenter.</p>
 </div>
+<!-- Si connecté mais pas autorisé -->
+<div th:if="${currentUser != null and !canComment}">
+    <em>Vous pouvez consulter cette photo, mais pas commenter.</em>
+</div>
+<!-- Si COMMENT ou ADMIN ou PROPRIÉTAIRE -->
+<div th:if="${canComment}">
+    <h3>Ajouter un commentaire</h3>
+    <form th:action="@{'/photo/' + ${photo.id} + '/comment'}" method="post">
+        <textarea name="contenu" rows="3" cols="50" required></textarea><br/>
+        <button type="submit">Envoyer</button>
+    </form>
+</div>
 
 <p>
     <a th:href="@{'/photo/' + ${photo.id} + '/raw'}" target="_blank">Voir en grande taille</a>