diff --git a/apps/participation/forms.py b/apps/participation/forms.py
index 1d619d0..b7032cb 100644
--- a/apps/participation/forms.py
+++ b/apps/participation/forms.py
@@ -119,7 +119,7 @@ class SolutionForm(forms.ModelForm):
     def clean_file(self):
         if "file" in self.files:
             file = self.files["file"]
-            if file.size > 2e6:
+            if file.size > 5e6:
                 raise ValidationError(_("The uploaded file size must be under 5 Mo."))
             if file.content_type != "application/pdf":
                 raise ValidationError(_("The uploaded file must be a PDF file."))
@@ -179,6 +179,15 @@ class PassageForm(forms.ModelForm):
 
 
 class SynthesisForm(forms.ModelForm):
+    def clean_file(self):
+        if "file" in self.files:
+            file = self.files["file"]
+            if file.size > 2e6:
+                raise ValidationError(_("The uploaded file size must be under 2 Mo."))
+            if file.content_type != "application/pdf":
+                raise ValidationError(_("The uploaded file must be a PDF file."))
+            return self.cleaned_data["photo_authorization"]
+
     def save(self, commit=True):
         """
         Don't save a synthesis with this way. Use a view instead