diff --git a/app/views/scodoc.py b/app/views/scodoc.py
index c8ea5aad23..0def371c2b 100644
--- a/app/views/scodoc.py
+++ b/app/views/scodoc.py
@@ -30,6 +30,8 @@ Module main: page d'accueil, avec liste des départements
 
 Emmanuel Viennet, 2021
 """
+import io
+
 from app.auth.models import User
 import os
 
@@ -38,7 +40,7 @@ from flask import abort, flash, url_for, redirect, render_template, send_file
 from flask import request
 from flask.app import Flask
 import flask_login
-from flask_login.utils import login_required
+from flask_login.utils import login_required, current_user
 from flask_wtf import FlaskForm
 from flask_wtf.file import FileField, FileAllowed
 from werkzeug.exceptions import BadRequest, NotFound
@@ -65,6 +67,8 @@ from app.scodoc.sco_exceptions import AccessDenied
 from app.scodoc.sco_permissions import Permission
 from app.views import scodoc_bp as bp
 
+from PIL import Image as PILImage
+
 
 @bp.route("/")
 @bp.route("/ScoDoc")
@@ -238,13 +242,9 @@ def configuration():
     if form.validate_on_submit():
         ScoDocSiteConfig.set_bonus_sport_func(form.bonus_sport_func_name.data)
         if form.logo_header.data:
-            sco_logos.store_image(
-                form.logo_header.data, os.path.join(scu.SCODOC_LOGOS_DIR, "logo_header")
-            )
+            sco_logos.write_logo(stream=form.logo_header.data, name="header")
         if form.logo_footer.data:
-            sco_logos.store_image(
-                form.logo_footer.data, os.path.join(scu.SCODOC_LOGOS_DIR, "logo_footer")
-            )
+            sco_logos.write_logo(stream=form.logo_footer.data, name="footer")
         app.clear_scodoc_cache()
         flash(f"Configuration enregistrée")
         return redirect(url_for("scodoc.index"))
@@ -257,29 +257,74 @@ def configuration():
     )
 
 
-def _return_logo(logo_type="header", scodoc_dept=""):
+SMALL_SIZE = (300, 300)
+
+
+def _return_logo(name="header", dept_id="", small=False, strict: bool = True):
     # stockée dans /opt/scodoc-data/config/logos donc servie manuellement ici
-    filename = sco_logos.get_logo_filename(logo_type, scodoc_dept)
-    if filename:
-        extension = os.path.splitext(filename)[1]
-        return send_file(filename, mimetype=f"image/{extension}")
+    logo = sco_logos.find_logo(name, dept_id, strict)
+    if logo is not None:
+        suffix = logo.suffix
+        if small:
+            with PILImage.open(logo.filepath) as im:
+                im.thumbnail(SMALL_SIZE)
+                stream = io.BytesIO()
+                # on garde le même format (on pourrait plus simplement générer systématiquement du JPEG)
+                fmt = {  # adapt suffix to be compliant with PIL save format
+                    "PNG": "PNG",
+                    "JPG": "JPEG",
+                    "JPEG": "JPEG",
+                }[suffix.upper()]
+                im.save(stream, fmt)
+                stream.seek(0)
+                return send_file(stream, mimetype=f"image/{fmt}")
+        else:
+            return send_file(logo.filepath, mimetype=f"image/{suffix}")
     else:
-        return ""
+        abort(404)
 
 
-@bp.route("/ScoDoc/logo_header")
-@bp.route("/ScoDoc/<scodoc_dept>/logo_header")
-def logo_header(scodoc_dept=""):
-    "Image logo header"
-    # "/opt/scodoc-data/config/logos/logo_header")
-    return _return_logo(logo_type="header", scodoc_dept=scodoc_dept)
+#  small version (copy/paste from get_logo
+@bp.route("/ScoDoc/logos/<name>/small", defaults={"dept_id": None})
+@bp.route("/ScoDoc/<int:dept_id>/logos/<name>/small")
+@admin_required
+def get_logo_small(name: str, dept_id: int):
+    strict = request.args.get("strict", "False")
+    return _return_logo(
+        name,
+        dept_id=dept_id,
+        small=True,
+        strict=strict.upper() not in ["0", "FALSE"],
+    )
 
 
-@bp.route("/ScoDoc/logo_footer")
-@bp.route("/ScoDoc/<scodoc_dept>/logo_footer")
-def logo_footer(scodoc_dept=""):
-    "Image logo footer"
-    return _return_logo(logo_type="footer", scodoc_dept=scodoc_dept)
+@bp.route(
+    "/ScoDoc/logos/<name>", defaults={"dept_id": None}
+)  # if dept not specified, take global logo
+@bp.route("/ScoDoc/<int:dept_id>/logos/<name>")
+@admin_required
+def get_logo(name: str, dept_id: int):
+    strict = request.args.get("strict", "False")
+    return _return_logo(
+        name,
+        dept_id=dept_id,
+        small=False,
+        strict=strict.upper() not in ["0", "FALSE"],
+    )
+
+
+# @bp.route("/ScoDoc/logo_header")
+# @bp.route("/ScoDoc/<scodoc_dept>/logo_header")
+# def logo_header(scodoc_dept=""):
+#     "Image logo header"
+#     return _return_logo(name="header", scodoc_dept=scodoc_dept)
+
+
+# @bp.route("/ScoDoc/logo_footer")
+# @bp.route("/ScoDoc/<scodoc_dept>/logo_footer")
+# def logo_footer(scodoc_dept=""):
+#     "Image logo footer"
+#     return _return_logo(name="footer", scodoc_dept=scodoc_dept)
 
 
 # essais