diff --git a/apps/treasury/admin.py b/apps/treasury/admin.py
index 74b52150..cef9e37d 100644
--- a/apps/treasury/admin.py
+++ b/apps/treasury/admin.py
@@ -8,7 +8,7 @@ from .models import Invoice, Product
 
 @admin.register(Invoice)
 class InvoiceAdmin(admin.ModelAdmin):
-    list_display = ('id', 'name', 'subject', 'acquitted', )
+    list_display = ('id', 'name', 'object', 'acquitted', )
 
 
 @admin.register(Product)
diff --git a/apps/treasury/forms.py b/apps/treasury/forms.py
index d4b763ea..56fcce27 100644
--- a/apps/treasury/forms.py
+++ b/apps/treasury/forms.py
@@ -1,6 +1,8 @@
 # Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+import datetime
+
 from crispy_forms.helper import FormHelper
 from django import forms
 
@@ -8,6 +10,14 @@ from .models import Invoice, Product
 
 
 class InvoiceForm(forms.ModelForm):
+    date = forms.DateField(
+        initial=datetime.date.today,
+        widget=forms.TextInput(attrs={'type': 'date'})
+    )
+
+    def clean_date(self):
+        self.instance.date = self.data.get("date")
+
     class Meta:
         model = Invoice
         fields = '__all__'
diff --git a/apps/treasury/models.py b/apps/treasury/models.py
index 3d1d0c48..52caeb0b 100644
--- a/apps/treasury/models.py
+++ b/apps/treasury/models.py
@@ -25,9 +25,9 @@ class Invoice(models.Model):
         verbose_name=_("BDE"),
     )
 
-    subject = models.CharField(
+    object = models.CharField(
         max_length=255,
-        verbose_name=_("Subject"),
+        verbose_name=_("Object"),
     )
 
     description = models.TextField(
@@ -52,56 +52,6 @@ class Invoice(models.Model):
         verbose_name=_("Acquitted"),
     )
 
-    place = models.CharField(
-        max_length=255,
-        default="Cachan",
-        verbose_name=_("Place"),
-    )
-
-    my_name = models.CharField(
-        max_length=255,
-        default="BDE ENS Cachan",
-        verbose_name=_("My name"),
-    )
-
-    my_address_street = models.CharField(
-        max_length=255,
-        default="61 avenue du Président Wilson",
-        verbose_name=_("My street address"),
-    )
-
-    my_city = models.CharField(
-        max_length=255,
-        default="94230 Cachan",
-        verbose_name=_("My city"),
-    )
-
-    bank_code = models.IntegerField(
-        default=30003,
-        verbose_name=_("Bank code"),
-    )
-
-    desk_code = models.IntegerField(
-        default=3894,
-        verbose_name=_("Desk code"),
-    )
-
-    account_number = models.IntegerField(
-        default=37280662,
-        verbose_name=_("Account number"),
-    )
-
-    rib_key = models.SmallIntegerField(
-        default=14,
-        verbose_name=_("RIB Key")
-    )
-
-    bic = models.CharField(
-        max_length=16,
-        default="SOGEFRPP",
-        verbose_name=_("BIC Code")
-    )
-
 
 class Product(models.Model):
     invoice = models.ForeignKey(
diff --git a/apps/treasury/tables.py b/apps/treasury/tables.py
index 156f6dcd..5dcfbcd6 100644
--- a/apps/treasury/tables.py
+++ b/apps/treasury/tables.py
@@ -29,4 +29,4 @@ class InvoiceTable(tables.Table):
         }
         model = Invoice
         template_name = 'django_tables2/bootstrap4.html'
-        fields = ('id', 'name', 'subject', 'acquitted', 'invoice',)
+        fields = ('id', 'name', 'object', 'acquitted', 'invoice',)
diff --git a/apps/treasury/views.py b/apps/treasury/views.py
index dcf4e913..8b5446d6 100644
--- a/apps/treasury/views.py
+++ b/apps/treasury/views.py
@@ -47,9 +47,9 @@ class InvoiceCreateView(LoginRequiredMixin, CreateView):
         kwargs = {}
         for key in self.request.POST:
             value = self.request.POST[key]
-            if key.endswith("amount"):
+            if key.endswith("amount") and value:
                 kwargs[key] = str(int(100 * float(value)))
-            else:
+            elif value:
                 kwargs[key] = value
 
         formset = ProductFormSet(kwargs, instance=form.instance)
@@ -87,6 +87,7 @@ class InvoiceUpdateView(LoginRequiredMixin, UpdateView):
         form = context['form']
         form.helper = FormHelper()
         form.helper.form_tag = False
+        form.fields['date'].initial = form.instance.date
         form_set = ProductFormSet(instance=form.instance)
         context['formset'] = form_set
         context['helper'] = ProductFormSetHelper()
@@ -100,26 +101,22 @@ class InvoiceUpdateView(LoginRequiredMixin, UpdateView):
         kwargs = {}
         for key in self.request.POST:
             value = self.request.POST[key]
-            if key.endswith("amount"):
+            if key.endswith("amount") and value:
                 kwargs[key] = str(int(100 * float(value)))
-            else:
+            elif value:
                 kwargs[key] = value
 
         formset = ProductFormSet(kwargs, instance=form.instance)
         saved = []
-        print(formset.errors)
         if formset.is_valid():
             for f in formset:
                 if f.is_valid() and f.instance.designation:
-                    if type(f.instance.pk) == 'number' and f.instance.pk <= 0:
-                        f.instance.pk = None
                     f.save()
                     f.instance.save()
                     saved.append(f.instance.pk)
                 else:
                     f.instance = None
-
-        Product.objects.filter(~Q(pk__in=saved), invoice=form.instance).delete()
+            Product.objects.filter(~Q(pk__in=saved), invoice=form.instance).delete()
 
         return ret
 
@@ -137,8 +134,18 @@ class InvoiceRenderView(LoginRequiredMixin, View):
         invoice = Invoice.objects.get(pk=pk)
         products = Product.objects.filter(invoice=invoice).all()
 
-        invoice.description = invoice.description.replace("\n", "\\newline\n")
-        invoice.address = invoice.address.replace("\n", "\\newline\n")
+        invoice.place = "Cachan"
+        invoice.my_name = "BDE ENS Cachan"
+        invoice.my_address_street = "61 avenue du Président Wilson"
+        invoice.my_city = "94230 Cachan"
+        invoice.bank_code = 30003
+        invoice.desk_code = 3894
+        invoice.account_number = 37280662
+        invoice.rib_key = 14
+        invoice.bic = "SOGEFRPP"
+
+        invoice.description = invoice.description.replace("\r", "").replace("\n", "\\\\ ")
+        invoice.address = invoice.address.replace("\r", "").replace("\n", "\\\\ ")
         tex = render_to_string("treasury/invoice_sample.tex", dict(obj=invoice, products=products))
         try:
             os.mkdir(BASE_DIR + "/tmp")
@@ -155,9 +162,6 @@ class InvoiceRenderView(LoginRequiredMixin, View):
                 error = subprocess.Popen(
                     ["pdflatex", "invoice-{}.tex".format(pk)],
                     cwd=tmp_dir,
-                    stdin=open(os.devnull, "r"),
-                    stderr=open(os.devnull, "wb"),
-                    stdout=open(os.devnull, "wb")
                 ).wait()
 
                 if error:
diff --git a/locale/de/LC_MESSAGES/django.po b/locale/de/LC_MESSAGES/django.po
index 29ec1bdc..4e950765 100644
--- a/locale/de/LC_MESSAGES/django.po
+++ b/locale/de/LC_MESSAGES/django.po
@@ -505,7 +505,7 @@ msgid "BDE"
 msgstr ""
 
 #: apps/treasury/models.py:30
-msgid "Subject"
+msgid "Object"
 msgstr ""
 
 #: apps/treasury/models.py:34
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index b137cc0e..8770d433 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -505,7 +505,7 @@ msgid "BDE"
 msgstr "BDE"
 
 #: apps/treasury/models.py:30
-msgid "Subject"
+msgid "Object"
 msgstr "Objet"
 
 #: apps/treasury/models.py:34
diff --git a/templates/treasury/invoice_sample.tex b/templates/treasury/invoice_sample.tex
index 625d10ba..3c76403e 100644
--- a/templates/treasury/invoice_sample.tex
+++ b/templates/treasury/invoice_sample.tex
@@ -85,7 +85,7 @@
 \def\FactureAcquittee    {% if obj.acquitted %} {oui} {% else %} {non} {% endif %}     % Facture acquittée : oui/non
 \def\FactureLieu    {{"{"}}{{ obj.place }}}    % Lieu de l'édition de la facture
 \def\FactureDate    {{"{"}}{{ obj.date }}}    % Date de l'édition de la facture
-\def\FactureObjet   {{"{"}}{{ obj.subject|safe }} }    % Objet du document
+\def\FactureObjet   {{"{"}}{{ obj.object|safe }} }    % Objet du document
 % Description de la facture
 \def\FactureDescr   {{"{"}}{{ obj.description|safe }}}