diff --git a/app/scodoc/gen_tables.py b/app/scodoc/gen_tables.py
index a9ed10aa..85554555 100644
--- a/app/scodoc/gen_tables.py
+++ b/app/scodoc/gen_tables.py
@@ -58,6 +58,7 @@ from app.scodoc import sco_utils as scu
 from app.scodoc import sco_excel
 from app.scodoc import sco_pdf
 from app.scodoc import sco_xml
+from app.scodoc.sco_exceptions import ScoPDFFormatError
 from app.scodoc.sco_pdf import SU
 from app import log
 
@@ -539,17 +540,18 @@ class GenTable(object):
         #
         # titles = ["<para><b>%s</b></para>" % x for x in self.get_titles_list()]
         pdf_style_list = []
-        Pt = [
-            [Paragraph(SU(str(x)), CellStyle) for x in line]
-            for line in (
-                self.get_data_list(
-                    pdf_mode=True,
-                    pdf_style_list=pdf_style_list,
-                    with_titles=True,
-                    omit_hidden_lines=True,
-                )
-            )
-        ]
+        data_list = self.get_data_list(
+            pdf_mode=True,
+            pdf_style_list=pdf_style_list,
+            with_titles=True,
+            omit_hidden_lines=True,
+        )
+        try:
+            Pt = [
+                [Paragraph(SU(str(x)), CellStyle) for x in line] for line in data_list
+            ]
+        except ValueError as exc:
+            raise ScoPDFFormatError(str(exc)) from exc
         pdf_style_list += self.pdf_table_style
         T = Table(Pt, repeatRows=1, colWidths=self.pdf_col_widths, style=pdf_style_list)
 
diff --git a/app/scodoc/sco_exceptions.py b/app/scodoc/sco_exceptions.py
index c563c93e..d975766e 100644
--- a/app/scodoc/sco_exceptions.py
+++ b/app/scodoc/sco_exceptions.py
@@ -60,6 +60,21 @@ class ScoFormatError(ScoValueError):
     pass
 
 
+class ScoPDFFormatError(ScoValueError):
+    "erreur génération PDF (templates platypus, ...)"
+
+    def __init__(self, msg, dest_url=None):
+        super().__init__(
+            f"""Erreur dans un format pdf:
+            <p>{msg}</p>
+            <p>Vérifiez les paramètres (polices de caractères, balisage) 
+            dans les paramètres ou préférences.
+            </p>
+            """,
+            dest_url=dest_url,
+        )
+
+
 class ScoInvalidDept(ScoValueError):
     """departement invalide"""
 
diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index 603627d1..df4c55e9 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -815,7 +815,7 @@ def tab_absences_html(groups_infos, etat=None):
             % (groups_infos.base_url, groups_infos.groups_titles),
             """<li><a class="stdlink" href="trombino?%s&format=pdf">Trombinoscope en PDF</a></li>"""
             % groups_infos.groups_query_args,
-            """<li><a class="stdlink" href="pdf_trombino_tours?%s&format=pdf">Trombinoscope en PDF (format "IUT de Tours", beta)</a></li>"""
+            """<li><a class="stdlink" href="pdf_trombino_tours?%s&format=pdf">Trombinoscope en PDF (format "IUT de Tours")</a></li>"""
             % groups_infos.groups_query_args,
             """<li><a class="stdlink" href="pdf_feuille_releve_absences?%s&format=pdf">Feuille relevé absences hebdomadaire (beta)</a></li>"""
             % groups_infos.groups_query_args,
diff --git a/app/scodoc/sco_preferences.py b/app/scodoc/sco_preferences.py
index 3dd413f5..a0d9b010 100644
--- a/app/scodoc/sco_preferences.py
+++ b/app/scodoc/sco_preferences.py
@@ -762,7 +762,7 @@ class BasePreferences(object):
                 {
                     "initvalue": "Helvetica",
                     "title": "Police de caractère principale",
-                    "explanation": "pour les pdf",
+                    "explanation": "pour les pdf (Helvetica est recommandée)",
                     "size": 25,
                     "category": "pdf",
                 },
diff --git a/app/scodoc/sco_trombino_tours.py b/app/scodoc/sco_trombino_tours.py
index e7f2266f..3861bb74 100644
--- a/app/scodoc/sco_trombino_tours.py
+++ b/app/scodoc/sco_trombino_tours.py
@@ -44,6 +44,7 @@ from app.scodoc import sco_groups_view
 from app.scodoc import sco_preferences
 from app.scodoc import sco_trombino
 from app.scodoc import sco_etud
+from app.scodoc.sco_exceptions import ScoPDFFormatError
 from app.scodoc.sco_pdf import *
 
 
@@ -268,7 +269,10 @@ def pdf_trombino_tours(
             preferences=sco_preferences.SemPreferences(),
         )
     )
-    document.build(objects)
+    try:
+        document.build(objects)
+    except (ValueError, KeyError) as exc:
+        raise ScoPDFFormatError(str(exc)) from exc
     data = report.getvalue()
 
     return scu.sendPDFFile(data, filename)
diff --git a/app/views/users.py b/app/views/users.py
index af4a721e..cc9b9db0 100644
--- a/app/views/users.py
+++ b/app/views/users.py
@@ -151,6 +151,8 @@ def user_info(user_name, format="json"):
 @scodoc7func
 def create_user_form(user_name=None, edit=0, all_roles=1):
     "form. création ou edition utilisateur"
+    if user_name is not None:  # scodoc7func converti en int !
+        user_name = str(user_name)
     auth_dept = current_user.dept
     from_mail = current_user.email
     initvalues = {}
@@ -745,6 +747,8 @@ def user_info_page(user_name=None):
     """
     from app.scodoc.sco_permissions_check import can_handle_passwd
 
+    if user_name is not None:  # scodoc7func converti en int !
+        user_name = str(user_name)
     # peut on divulguer ces infos ?
     if not can_handle_passwd(current_user, allow_admindepts=True):
         raise AccessDenied("Vous n'avez pas la permission de voir cette page")
@@ -753,7 +757,7 @@ def user_info_page(user_name=None):
     if not user_name:
         user = current_user
     else:
-        user = User.query.filter_by(user_name=str(user_name)).first()
+        user = User.query.filter_by(user_name=user_name).first()
     if not user:
         raise ScoValueError("invalid user_name")
 
@@ -802,6 +806,8 @@ def form_change_password(user_name=None):
     """Formulaire de changement mot de passe de l'utilisateur user_name.
     Un utilisateur peut toujours changer son propre mot de passe.
     """
+    if user_name is not None:  # scodoc7func converti en int !
+        user_name = str(user_name)
     if not user_name:
         user = current_user
     else:
@@ -850,6 +856,8 @@ def form_change_password(user_name=None):
 @scodoc7func
 def change_password(user_name, password, password2):
     "Change the password for user given by user_name"
+    if user_name is not None:  # scodoc7func converti en int !
+        user_name = str(user_name)
     u = User.query.filter_by(user_name=user_name).first()
     # Check access permission
     if not can_handle_passwd(u):
@@ -909,6 +917,8 @@ def change_password(user_name, password, password2):
 @permission_required(Permission.ScoUsersAdmin)
 def toggle_active_user(user_name: str = None):
     """Change active status of a user account"""
+    if user_name is not None:  # scodoc7func converti en int !
+        user_name = str(user_name)
     u = User.query.filter_by(user_name=user_name).first()
     if not u:
         raise ScoValueError("invalid user_name")
diff --git a/tools/import_scodoc7_dept.py b/tools/import_scodoc7_dept.py
index cedf0a93..597b9baf 100644
--- a/tools/import_scodoc7_dept.py
+++ b/tools/import_scodoc7_dept.py
@@ -389,6 +389,7 @@ def convert_object(
                     new_ref = None
                 elif is_table and table_name in {
                     "notes_semset_formsemestre",
+                    "entreprise_contact",
                 }:
                     # pour anciennes installs où des relations n'avait pas été déclarées clés étrangères
                     # eg: notes_semset_formsemestre.semset_id n'était pas une clé