diff --git a/app/entreprises/forms.py b/app/entreprises/forms.py
index 796ae027f7..603f6d845c 100644
--- a/app/entreprises/forms.py
+++ b/app/entreprises/forms.py
@@ -82,13 +82,6 @@ class EntrepriseCreationForm(FlaskForm):
 
     submit = SubmitField("Envoyer", render_kw=SUBMIT_MARGE)
 
-    def validate(self):
-        validate = True
-        if not FlaskForm.validate(self):
-            validate = False
-
-        return validate
-
     def validate_siret(self, siret):
         if EntreprisePreferences.get_check_siret():
             siret_data = siret.data.replace(" ", "")
@@ -151,7 +144,14 @@ class OffreCreationForm(FlaskForm):
     duree = _build_string_field("Durée (*)")
     depts = MultiCheckboxField("Départements", validators=[Optional()], coerce=int)
     expiration_date = DateField("Date expiration", validators=[Optional()])
-    correspondant = SelectField("Correspondant à contacté (*)", validators=[Optional()])
+    correspondant = SelectField("Correspondant à contacté", validators=[Optional()])
+    fichier = FileField(
+        "Fichier (*)",
+        validators=[
+            Optional(),
+            FileAllowed(["pdf", "docx"], "Fichier .pdf ou .docx uniquement"),
+        ],
+    )
     submit = SubmitField("Envoyer", render_kw=SUBMIT_MARGE)
 
     def __init__(self, *args, **kwargs):
@@ -168,6 +168,17 @@ class OffreCreationForm(FlaskForm):
             (dept.id, dept.acronym) for dept in Departement.query.all()
         ]
 
+    def validate(self):
+        validate = True
+        if not FlaskForm.validate(self):
+            validate = False
+
+        if len(self.depts.data) < 1:
+            self.depts.errors.append("Choisir au moins un département")
+            validate = False
+
+        return validate
+
 
 class OffreModificationForm(FlaskForm):
     hidden_entreprise_id = HiddenField()
@@ -203,6 +214,17 @@ class OffreModificationForm(FlaskForm):
             (dept.id, dept.acronym) for dept in Departement.query.all()
         ]
 
+    def validate(self):
+        validate = True
+        if not FlaskForm.validate(self):
+            validate = False
+
+        if len(self.depts.data) < 1:
+            self.depts.errors.append("Choisir au moins un département")
+            validate = False
+
+        return validate
+
 
 class CorrespondantCreationForm(FlaskForm):
     nom = _build_string_field("Nom (*)", render_kw={"class": "form-control"})
diff --git a/app/entreprises/routes.py b/app/entreprises/routes.py
index 6cdeb437e0..91a595fd2e 100644
--- a/app/entreprises/routes.py
+++ b/app/entreprises/routes.py
@@ -18,7 +18,6 @@ from app.entreprises.forms import (
     SuppressionConfirmationForm,
     OffreCreationForm,
     OffreModificationForm,
-    CorrespondantCreationForm,
     CorrespondantModificationForm,
     ContactCreationForm,
     ContactModificationForm,
@@ -509,6 +508,19 @@ def add_offre(id):
                 dept_id=dept,
             )
             db.session.add(offre_dept)
+        if form.fichier.data:
+            date = f"{datetime.now().strftime('%Y-%m-%d-%H-%M-%S')}"
+            path = os.path.join(
+                Config.SCODOC_VAR_DIR,
+                "entreprises",
+                f"{offre.entreprise_id}",
+                f"{offre.id}",
+                f"{date}",
+            )
+            os.makedirs(path)
+            file = form.fichier.data
+            filename = secure_filename(file.filename)
+            file.save(os.path.join(path, filename))
         log = EntrepriseLog(
             authenticated_user=current_user.user_name,
             object=entreprise.id,
diff --git a/app/templates/entreprises/form.html b/app/templates/entreprises/form.html
index 5aa9fc6d72..59cf878528 100644
--- a/app/templates/entreprises/form.html
+++ b/app/templates/entreprises/form.html
@@ -25,14 +25,17 @@
             var closest_form_control = champ_depts.closest(".form-control")
             closest_form_control.classList.remove("form-control")
         }
-        
+
+        if(document.getElementById("expiration_date").value === "")
+            expiration()
+
         document.getElementById("type_offre").addEventListener("change", expiration);
 
         function expiration() {
             var date = new Date()
             var expiration = document.getElementById("expiration_date")
             var type_offre = document.getElementById("type_offre").value
-            if (type_offre == "Alternance") {
+            if (type_offre === "Alternance") {
                 expiration.value = `${date.getFullYear() + 1}-01-01`
             } else {
                 if(date.getMonth() + 1  < 7)