diff --git a/.changes/unreleased/Fixed-20260113-162130.yaml b/.changes/unreleased/Fixed-20260113-162130.yaml
new file mode 100644
index 000000000..d0919a1af
--- /dev/null
+++ b/.changes/unreleased/Fixed-20260113-162130.yaml
@@ -0,0 +1,7 @@
+kind: Fixed
+body: |
+    Prevent sending a notification when the user sign the document himself
+time: 2026-01-13T16:21:30.279454299+01:00
+custom:
+    Issue: "490"
+    SchemaChange: No schema change
diff --git a/src/Bundle/ChillMainBundle/Tests/Workflow/EventSubscriber/NotificationOnTransitionTest.php b/src/Bundle/ChillMainBundle/Tests/Workflow/EventSubscriber/NotificationOnTransitionTest.php
index 9f90c5b12..52f3e4eba 100644
--- a/src/Bundle/ChillMainBundle/Tests/Workflow/EventSubscriber/NotificationOnTransitionTest.php
+++ b/src/Bundle/ChillMainBundle/Tests/Workflow/EventSubscriber/NotificationOnTransitionTest.php
@@ -15,7 +15,9 @@ use Chill\MainBundle\Entity\Notification;
 use Chill\MainBundle\Entity\User;
 use Chill\MainBundle\Entity\UserGroup;
 use Chill\MainBundle\Entity\Workflow\EntityWorkflow;
+use Chill\MainBundle\Entity\Workflow\EntityWorkflowSignatureStateEnum;
 use Chill\MainBundle\Entity\Workflow\EntityWorkflowStep;
+use Chill\MainBundle\Entity\Workflow\EntityWorkflowStepSignature;
 use Chill\MainBundle\Workflow\EntityWorkflowHandlerInterface;
 use Chill\MainBundle\Workflow\EntityWorkflowManager;
 use Chill\MainBundle\Workflow\EventSubscriber\NotificationOnTransition;
@@ -87,7 +89,7 @@ final class NotificationOnTransitionTest extends TestCase
             ->willReturn([]);
 
         $registry = $this->prophesize(Registry::class);
-        $registry->get(Argument::type(EntityWorkflow::class), Argument::type('string'))
+        $registry->get(Argument::type(EntityWorkflow::class), Argument::any())
             ->willReturn($workflow);
 
         $security = $this->prophesize(Security::class);
@@ -111,4 +113,74 @@ final class NotificationOnTransitionTest extends TestCase
 
         $notificationOnTransition->onCompletedSendNotification($event);
     }
+
+    public function testOnCompleteDoNotSendNotificationIfStepCreatedByPreviousSignature(): void
+    {
+        $dest = new User();
+        $currentUser = new User();
+        $workflowProphecy = $this->prophesize(WorkflowInterface::class);
+        $workflow = $workflowProphecy->reveal();
+        $entityWorkflow = new EntityWorkflow();
+        $entityWorkflow
+            ->setWorkflowName('workflow_name')
+            ->setRelatedEntityClass(\stdClass::class)
+            ->setRelatedEntityId(1);
+        // force an id to entityWorkflow:
+        $reflection = new \ReflectionClass($entityWorkflow);
+        $id = $reflection->getProperty('id');
+        $id->setValue($entityWorkflow, 1);
+
+        $previousStep = new EntityWorkflowStep();
+        $previousStep->addSignature($signature = new EntityWorkflowStepSignature($previousStep, $dest));
+        $signature->setState(EntityWorkflowSignatureStateEnum::SIGNED);
+
+        $currentStep = new EntityWorkflowStep();
+        $currentStep->addDestUser($dest);
+        $currentStep->setCurrentStep('to_state');
+
+        $entityWorkflow->addStep($previousStep);
+        $entityWorkflow->addStep($currentStep);
+
+        $em = $this->prophesize(EntityManagerInterface::class);
+
+        // we check that NO notification has been persisted for $dest
+        $em->persist(Argument::that(
+            fn ($notificationCandidate) => $notificationCandidate instanceof Notification && $notificationCandidate->getAddressees()->contains($dest)
+        ))->shouldNotBeCalled();
+
+        $engine = $this->prophesize(\Twig\Environment::class);
+        $engine->render(Argument::type('string'), Argument::type('array'))
+            ->willReturn('dummy text');
+
+        $extractor = $this->prophesize(MetadataExtractor::class);
+        $extractor->buildArrayPresentationForPlace(Argument::type(EntityWorkflow::class), Argument::any())
+            ->willReturn([]);
+        $extractor->buildArrayPresentationForWorkflow(Argument::any())
+            ->willReturn([]);
+
+        $registry = $this->prophesize(Registry::class);
+        $registry->get(Argument::type(EntityWorkflow::class), Argument::any())
+            ->willReturn($workflow);
+
+        $security = $this->prophesize(Security::class);
+        $security->getUser()->willReturn(null);
+
+        $entityWorkflowHandler = $this->prophesize(EntityWorkflowHandlerInterface::class);
+        $entityWorkflowHandler->getEntityTitle($entityWorkflow)->willReturn('workflow title');
+        $entityWorkflowManager = $this->prophesize(EntityWorkflowManager::class);
+        $entityWorkflowManager->getHandler($entityWorkflow)->willReturn($entityWorkflowHandler->reveal());
+
+        $notificationOnTransition = new NotificationOnTransition(
+            $em->reveal(),
+            $engine->reveal(),
+            $extractor->reveal(),
+            $security->reveal(),
+            $registry->reveal(),
+            $entityWorkflowManager->reveal(),
+        );
+
+        $event = new Event($entityWorkflow, new Marking(), new Transition('dummy_transition', ['from_state'], ['to_state']), $workflow);
+
+        $notificationOnTransition->onCompletedSendNotification($event);
+    }
 }
diff --git a/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationOnTransition.php b/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationOnTransition.php
index 3775869e7..a48107156 100644
--- a/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationOnTransition.php
+++ b/src/Bundle/ChillMainBundle/Workflow/EventSubscriber/NotificationOnTransition.php
@@ -103,7 +103,10 @@ class NotificationOnTransition implements EventSubscriberInterface
 
         foreach ($dests as $subscriber) {
             if (
+                // prevent to send a notification to the one who created the step
                 $this->security->getUser() === $subscriber
+                // prevent to send a notification if the user applyied a signature on the previous step
+                || $this->isStepCreatedByPreviousSignature($entityWorkflow, $subscriber)
             ) {
                 continue;
             }
@@ -131,4 +134,31 @@ class NotificationOnTransition implements EventSubscriberInterface
             $this->entityManager->persist($notification);
         }
     }
+
+    /**
+     * Checks if the current step in the workflow was created by a previous signature of the specified user.
+     *
+     * This method retrieves the current step of the workflow and its preceding step. It iterates through
+     * the signatures of the preceding step to verify if the provided user is the signer of any of those
+     * signatures. Returns true if the user matches any signer; otherwise, returns false.
+     *
+     * @param EntityWorkflow $entityWorkflow the workflow entity containing the current step and its details
+     * @param User           $user           the user to check against the signatures of the previous step in the workflow
+     *
+     * @return bool true if the specified user created the step via a previous signature, false otherwise
+     */
+    private function isStepCreatedByPreviousSignature(EntityWorkflow $entityWorkflow, User $user): bool
+    {
+        $step = $entityWorkflow->getCurrentStepChained();
+        $previous = $step->getPrevious();
+
+
+        foreach ($previous->getSignatures() as $signature) {
+            if ($signature->getSigner() === $user) {
+                return true;
+            }
+        }
+
+        return false;
+    }
 }