diff --git a/css/style.css b/css/style.css
index 7f4bcdd..28fb03f 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1078,7 +1078,7 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     margin-top:10px;
 }
 
-#module-bib .bib-workspace-nav{
+#module-bib .bib-workspace-bar{
     display:flex;
     align-items:stretch;
     gap:4px;
@@ -1089,6 +1089,12 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     overflow-x:auto;
 }
 
+#module-bib .bib-workspace-nav{
+    display:flex;
+    align-items:stretch;
+    gap:4px;
+}
+
 #module-bib .bib-workspace-tab{
     display:inline-flex;
     align-items:center;
@@ -1107,6 +1113,41 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     cursor:pointer;
 }
 
+/* MSIN-4470 — L'impression PDF reste accessible à droite des espaces principaux. */
+#module-bib .bib-workspace-action{
+    display:flex;
+    flex:0 0 auto;
+    margin-left:auto;
+}
+
+#module-bib .bib-workspace-action .bib-tool-btn{
+    width:auto;
+    min-height:42px;
+    padding:8px 16px;
+    border-width:0;
+    background:transparent;
+    color:#495057;
+    font-size:13px;
+    font-weight:600;
+    line-height:1.25;
+}
+
+#module-bib .bib-workspace-action .bib-tool-btn:not(.is-active):hover,
+#module-bib .bib-workspace-action .bib-tool-btn:not(.is-active):focus{
+    background:#e8f0f8;
+    color:#1e4a9e;
+    box-shadow:none;
+}
+
+#module-bib .bib-workspace-action .bib-tool-btn.is-active,
+#module-bib .bib-workspace-action .bib-tool-btn.is-active:hover,
+#module-bib .bib-workspace-action .bib-tool-btn.is-active:focus{
+    background:#2f5fd0;
+    color:#fff;
+    border-color:transparent;
+    box-shadow:none;
+}
+
 #module-bib .bib-workspace-tab:hover,
 #module-bib .bib-workspace-tab:focus{
     background:#e8f0f8;
@@ -1655,6 +1696,7 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
 }
 
 @media (max-width:768px){
+    #module-bib .bib-workspace-bar,
     #module-bib .bib-workspace-nav{
         align-items:stretch;
     }
@@ -2103,13 +2145,18 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
 
 .bib-race-summary__group h4{
     margin:0 0 5px;
-    color:#6c757d;
-    font-size:10px;
-    font-weight:700;
-    letter-spacing:.03em;
+    color:#1e3a6e;
+    font-size:11px;
+    font-weight:800;
+    letter-spacing:.06em;
     text-transform:uppercase;
 }
 
+/* MSIN-4470 — Accentue légèrement les deux repères principaux de chaque épreuve. */
+.bib-race-summary__group--bibs h4{
+    color:#1e4fbf;
+}
+
 .bib-race-summary__stats{
     display:grid;
     grid-template-columns:repeat(3, minmax(0, 1fr));
diff --git a/js/v2/bib-assignments.js b/js/v2/bib-assignments.js
index f2c0e7f..5430b74 100644
--- a/js/v2/bib-assignments.js
+++ b/js/v2/bib-assignments.js
@@ -540,9 +540,14 @@
                 if (toolId === 'event_config') {
                     return 'settings';
                 }
-                if (toolId === 'global_batch' || toolId === 'dist_print') {
+                if (toolId === 'global_batch') {
                     return 'operations';
                 }
+                // MSIN-4470 — L'action PDF est globale et s'ouvre depuis la barre supérieure
+                // sans déplacer l'utilisateur vers un autre espace de travail.
+                if (toolId === 'dist_print') {
+                    return bibActiveWorkspace;
+                }
                 return 'preparation';
             }
 
@@ -1983,6 +1988,15 @@
                 bibOpenTool(toolBtn.getAttribute('data-bib-tool'));
             });
 
+            // MSIN-4469 — Le téléchargement part dans un nouvel onglet;
+            // l’écran principal revient aussitôt à Quantités et assignation.
+            moduleBib.addEventListener('submit', function (e) {
+                var productionForm = e.target.closest('.bib-production-return-preparation-form');
+                if (productionForm && moduleBib.contains(productionForm)) {
+                    bibSetWorkspace('preparation');
+                }
+            });
+
             moduleBib.addEventListener('click', function (e) {
                 var workspaceTab = e.target.closest('.bib-workspace-tab');
                 if (workspaceTab && moduleBib.contains(workspaceTab)) {
diff --git a/php/inc_fx_bib_production.php b/php/inc_fx_bib_production.php
index cbb3713..a9ef2b1 100644
--- a/php/inc_fx_bib_production.php
+++ b/php/inc_fx_bib_production.php
@@ -160,6 +160,8 @@ function fxBibProductionCollectSnapshot($intEveId, $strLangue = 'fr') {
             continue;
         }
 
+        // MSIN-4469 — La commande porte sur toute la séquence à imprimer,
+        // même lorsqu’aucun coureur ni aucun dossard assigné ne s’y trouve encore.
         $tabRangesRaw = $objDatabase->fxGetResults(
             "SELECT epr_bib_id, epr_bib_start, epr_bib_finish
              FROM inscriptions_epreuves_bib
diff --git a/php/inc_fx_promoteur.php b/php/inc_fx_promoteur.php
index 9c6023d..559acd2 100644
--- a/php/inc_fx_promoteur.php
+++ b/php/inc_fx_promoteur.php
@@ -5048,7 +5048,8 @@ function renderBibProductionPreview(array $tabEpreuves, $strLangue = 'fr') {
                     </p>
 
                     <?php if (($tabProductionOrder['bpo_status'] ?? '') === 'ready') { ?>
-                        <form method="post" action="<?php echo fxBibEsc($strExcelUrl); ?>" target="_blank">
+                        <form method="post" action="<?php echo fxBibEsc($strExcelUrl); ?>" target="_blank"
+                              class="bib-production-return-preparation-form">
                             <input type="hidden" name="action" value="download">
                             <input type="hidden" name="eve_id" value="<?php echo $intEveId; ?>">
                             <input type="hidden" name="order_id" value="<?php echo (int)$tabProductionOrder['bpo_id']; ?>">
@@ -5080,7 +5081,8 @@ function renderBibProductionPreview(array $tabEpreuves, $strLangue = 'fr') {
                     <?php } ?>
                 <?php } elseif ($intRangeTotal > 0) { ?>
                     <p class="text-muted small"><?php fxBibTexteTrad('bib_v5_production_excel_generate_help', 1); ?></p>
-                    <form method="post" action="<?php echo fxBibEsc($strExcelUrl); ?>" target="_blank">
+                    <form method="post" action="<?php echo fxBibEsc($strExcelUrl); ?>" target="_blank"
+                          class="bib-production-return-preparation-form">
                         <input type="hidden" name="action" value="generate">
                         <input type="hidden" name="eve_id" value="<?php echo $intEveId; ?>">
                         <input type="hidden" name="csrf_token" value="<?php echo fxBibEsc(fxBibCsrfToken()); ?>">
@@ -5160,7 +5162,7 @@ function renderBibProductionPreview(array $tabEpreuves, $strLangue = 'fr') {
 }
 
 /**
- * MSIN-4440 / MSIN-4467 — Espaces principaux + outils et panneau de détail unique.
+ * MSIN-4440 / MSIN-4467 / MSIN-4470 — Espaces principaux + outils et panneau de détail unique.
  */
 function renderBibToolNav($int_eve_id, $tabEpreuves, $strLangue = 'fr') {
     $int_eve_id = (int)$int_eve_id;
@@ -5181,12 +5183,17 @@ function renderBibToolNav($int_eve_id, $tabEpreuves, $strLangue = 'fr') {
     ob_start();
     ?>
     <div class="bib-tool-hub">
-    <nav class="bib-workspace-nav" role="tablist" aria-label="<?php echo fxBibEsc($strNavLabel); ?>">
-        <?php echo renderBibWorkspaceTab('preparation', 'bib_v5_workspace_preparation', true); ?>
-        <?php echo renderBibWorkspaceTab('operations', 'bib_v5_workspace_operations'); ?>
-        <?php echo renderBibWorkspaceTab('settings', 'bib_v5_workspace_settings'); ?>
-        <?php echo renderBibWorkspaceTab('production', 'bib_v5_workspace_production'); ?>
-    </nav>
+    <div class="bib-workspace-bar">
+        <nav class="bib-workspace-nav" role="tablist" aria-label="<?php echo fxBibEsc($strNavLabel); ?>">
+            <?php echo renderBibWorkspaceTab('preparation', 'bib_v5_workspace_preparation', true); ?>
+            <?php echo renderBibWorkspaceTab('operations', 'bib_v5_workspace_operations'); ?>
+            <?php echo renderBibWorkspaceTab('settings', 'bib_v5_workspace_settings'); ?>
+            <?php echo renderBibWorkspaceTab('production', 'bib_v5_workspace_production'); ?>
+        </nav>
+        <div class="bib-workspace-action">
+            <?php echo renderBibToolNavBtn('dist_print', 'bib_v4_dist_print_title'); ?>
+        </div>
+    </div>
 
     <section class="bib-workspace-panel" data-bib-workspace-panel="preparation">
         <?php echo renderBibPreparationOverview($tabEpreuves, $strAnomBadges); ?>
@@ -5204,7 +5211,6 @@ function renderBibToolNav($int_eve_id, $tabEpreuves, $strLangue = 'fr') {
             <?php if (fxBibGlobalBatchToolIsAvailable($int_eve_id, $tabEpreuves)) {
                 echo renderBibToolNavBtn('global_batch', 'bib_v4_global_batch_title');
             } ?>
-            <?php echo renderBibToolNavBtn('dist_print', 'bib_v4_dist_print_title'); ?>
         </nav>
     </section>
 
@@ -5697,15 +5703,17 @@ function fxShowBibTool4($str_code, $int_eve_id, $strLangue){
 
  ?>
 
-    <div class="card-header bib-tool-card-header">
-        <h2 class="bib-tool-card-title"><?php afficheTexte('promoteur_bib_tool')?></h2>
-        <?php
-        if (function_exists('fxEveAccesPermInspectBadge')) {
-            echo ' ' . fxEveAccesPermInspectBadge('dossards.manage', 'bib');
-            echo ' ' . fxEveAccesPermInspectBadge('epreuves.edit_qte', 'bib');
-        }
-        ?>
-    </div>
+    <?php
+    // MSIN-4470 — Retire le bandeau « Épreuves » sans masquer les badges d'inspection des permissions.
+    $strPermInspectBadges = '';
+    if (function_exists('fxEveAccesPermInspectBadge')) {
+        $strPermInspectBadges .= fxEveAccesPermInspectBadge('dossards.manage', 'bib');
+        $strPermInspectBadges .= fxEveAccesPermInspectBadge('epreuves.edit_qte', 'bib');
+    }
+    if (trim($strPermInspectBadges) !== '') {
+        echo '<div class="bib-tool-permission-inspect">' . $strPermInspectBadges . '</div>';
+    }
+    ?>
 
     <div id="module-bib" class="epr-wrapper" data-csrf-token="<?php echo fxBibEsc(fxBibCsrfToken()); ?>" data-lang="<?php echo fxBibEsc($strLangue); ?>" data-eve-id="<?php echo (int)$int_eve_id; ?>" data-allow-inter-epr="<?php echo fxBibEventAllowsInterEprDuplicates((int)$int_eve_id) ? '1' : '0'; ?>"<?php echo fxBibModuleJsDataAttrs(); ?><?php echo fxAdminTextEditModeActive() ? ' data-bib-trad="1"' : ''; ?>>
 
diff --git a/php/inc_settings.php b/php/inc_settings.php
index af73077..3994a6d 100644
--- a/php/inc_settings.php
+++ b/php/inc_settings.php
@@ -7,7 +7,7 @@
  * Constantes *
  *
  **************/
-define('_VERSION_CODE', '4.72.856'); // MSIN-4469
+define('_VERSION_CODE', '4.72.858'); // MSIN-4470
 define('_DATE_CODE', '2026-07-21');
 //MSIN-4290
 define('QR_SECRET_KEY', 'ms1_qr_2026_cle_secrete_longue_et_fixe');
diff --git a/sql/MSIN-4470-corrections-interface-dossards.sql b/sql/MSIN-4470-corrections-interface-dossards.sql
new file mode 100644
index 0000000..2e71615
--- /dev/null
+++ b/sql/MSIN-4470-corrections-interface-dossards.sql
@@ -0,0 +1,63 @@
+-- MSIN-4470 — Corrections de l'interface des dossards
+-- Prérequis : MSIN-4424-bib-allow-inter-epr.sql et MSIN-4467-refonte-visuelle-dossards.sql.
+-- Idempotent. Exécuter avant le déploiement PHP/CSS/JS.
+
+UPDATE info
+SET info_texte = 'Autoriser les mêmes numéros de dossard entre épreuves (doublons)',
+    info_description = 'MSIN-4470'
+WHERE info_clef = 'bib_v4_allow_inter_epr'
+  AND info_langue = 'fr'
+  AND info_prg = 'compte.php';
+
+UPDATE info
+SET info_texte = 'Allow the same bib numbers across races (duplicates)',
+    info_description = 'MSIN-4470'
+WHERE info_clef = 'bib_v4_allow_inter_epr'
+  AND info_langue = 'en'
+  AND info_prg = 'compte.php';
+
+INSERT INTO info (
+    info_clef,
+    info_langue,
+    info_texte,
+    info_aide,
+    info_prg,
+    info_description,
+    info_trie,
+    info_actif,
+    info_option1,
+    info_option2,
+    info_option3,
+    info_creation
+)
+SELECT
+    src.info_clef,
+    src.info_langue,
+    src.info_texte,
+    '',
+    'compte.php',
+    'MSIN-4470',
+    0,
+    1,
+    '',
+    '',
+    '',
+    NOW()
+FROM (
+    SELECT
+        'bib_v4_allow_inter_epr' AS info_clef,
+        'fr' AS info_langue,
+        'Autoriser les mêmes numéros de dossard entre épreuves (doublons)' AS info_texte
+    UNION ALL
+    SELECT
+        'bib_v4_allow_inter_epr',
+        'en',
+        'Allow the same bib numbers across races (duplicates)'
+) src
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM info current_info
+    WHERE current_info.info_clef = src.info_clef
+      AND current_info.info_langue = src.info_langue
+      AND current_info.info_prg = 'compte.php'
+);