diff --git a/src/lib/ae_events/ae_events__event_badge.ts b/src/lib/ae_events/ae_events__event_badge.ts
index 51b87832..e43f0024 100644
--- a/src/lib/ae_events/ae_events__event_badge.ts
+++ b/src/lib/ae_events/ae_events__event_badge.ts
@@ -632,6 +632,7 @@ export const properties_to_save = [
     'print_last_datetime',
     'allow_tracking',
     'agree_to_tc',
+    'cfg_json',
     'other_1_code',
     'other_2_code',
     'other_3_code',
diff --git a/src/lib/ae_events/db_events.ts b/src/lib/ae_events/db_events.ts
index a63add75..65140c63 100644
--- a/src/lib/ae_events/db_events.ts
+++ b/src/lib/ae_events/db_events.ts
@@ -170,6 +170,7 @@ export interface Badge {
 
     // passcode?: null|string;
 
+    cfg_json?: null | string;
     // data_json?: null|string;
 
     default_qry_str?: null | string;
diff --git a/src/lib/types/ae_types.ts b/src/lib/types/ae_types.ts
index d6005baa..b6fd009a 100644
--- a/src/lib/types/ae_types.ts
+++ b/src/lib/types/ae_types.ts
@@ -507,6 +507,7 @@ export interface ae_EventBadge extends ae_BaseObj {
     agree_to_tc?: boolean | null;
 
     ticket_list?: any[] | null;
+    cfg_json?: any;
     data_json?: any;
     default_qry_str?: string | null;
 }
diff --git a/src/routes/events/[event_id]/(badges)/badges/[badge_id]/ae_comp__badge_print_controls.svelte b/src/routes/events/[event_id]/(badges)/badges/[badge_id]/ae_comp__badge_print_controls.svelte
index b4aad3ea..92e289d4 100644
--- a/src/routes/events/[event_id]/(badges)/badges/[badge_id]/ae_comp__badge_print_controls.svelte
+++ b/src/routes/events/[event_id]/(badges)/badges/[badge_id]/ae_comp__badge_print_controls.svelte
@@ -624,6 +624,113 @@ let is_dirty_badge_type = $derived(
             null)
 );
 
+// --- Lock / Reset font sizes to badge cfg_json ---
+// "Lock Sizes" saves the current font_size_* values into event_badge.cfg_json.font_sizes.
+// Any kiosk that opens this badge will then load those sizes instead of auto-sizing.
+// "Reset to Auto" saves null for all fields, restoring auto-sizing everywhere.
+// Trusted-only — attendees at the badge table can't permanently alter the layout.
+type LockStatus = 'idle' | 'saving' | 'done' | 'error';
+let lock_sizes_status: LockStatus = $state('idle');
+
+// True when at least one size is non-null (i.e. user has adjusted something)
+let has_any_size_override = $derived(
+    font_size_name !== null ||
+    font_size_title !== null ||
+    font_size_affiliations !== null ||
+    font_size_location !== null
+);
+
+// Detect whether current state differs from what is saved in badge cfg_json
+// so we can highlight the button when there are unsaved size changes.
+let saved_font_sizes = $derived.by(() => {
+    try {
+        const cfg = typeof $lq__event_badge_obj?.cfg_json === 'string'
+            ? JSON.parse($lq__event_badge_obj.cfg_json)
+            : ($lq__event_badge_obj?.cfg_json ?? {});
+        return cfg?.font_sizes ?? null;
+    } catch {
+        return null;
+    }
+});
+let sizes_are_dirty = $derived(
+    font_size_name !== (saved_font_sizes?.name ?? null) ||
+    font_size_title !== (saved_font_sizes?.title ?? null) ||
+    font_size_affiliations !== (saved_font_sizes?.affiliations ?? null) ||
+    font_size_location !== (saved_font_sizes?.location ?? null)
+);
+
+async function lock_font_sizes() {
+    if (!$lq__event_badge_obj?.event_badge_id) return;
+    lock_sizes_status = 'saving';
+    try {
+        // Merge into existing cfg_json — preserve any other keys that may be there
+        const existing_cfg = (() => {
+            try {
+                return typeof $lq__event_badge_obj.cfg_json === 'string'
+                    ? JSON.parse($lq__event_badge_obj.cfg_json)
+                    : ($lq__event_badge_obj.cfg_json ?? {});
+            } catch { return {}; }
+        })();
+        const new_cfg = {
+            ...existing_cfg,
+            font_sizes: {
+                name: font_size_name,
+                title: font_size_title,
+                affiliations: font_size_affiliations,
+                location: font_size_location
+            }
+        };
+        await events_func.update_ae_obj__event_badge({
+            api_cfg: $ae_api,
+            event_id,
+            event_badge_id: $lq__event_badge_obj.event_badge_id,
+            data_kv: { cfg_json: JSON.stringify(new_cfg) },
+            log_lvl
+        });
+        lock_sizes_status = 'done';
+        setTimeout(() => { lock_sizes_status = 'idle'; }, 1500);
+    } catch (err) {
+        console.error('Badge print controls: lock font sizes error:', err);
+        lock_sizes_status = 'error';
+        setTimeout(() => { lock_sizes_status = 'idle'; }, 2500);
+    }
+}
+
+async function reset_font_sizes_to_auto() {
+    // Clear all local size state
+    font_size_name = null;
+    font_size_title = null;
+    font_size_affiliations = null;
+    font_size_location = null;
+    if (!$lq__event_badge_obj?.event_badge_id) return;
+    // Persist the reset back to the badge — removes the locked sizes server-side
+    lock_sizes_status = 'saving';
+    try {
+        const existing_cfg = (() => {
+            try {
+                return typeof $lq__event_badge_obj.cfg_json === 'string'
+                    ? JSON.parse($lq__event_badge_obj.cfg_json)
+                    : ($lq__event_badge_obj.cfg_json ?? {});
+            } catch { return {}; }
+        })();
+        const new_cfg = { ...existing_cfg };
+        delete new_cfg.font_sizes;
+        await events_func.update_ae_obj__event_badge({
+            api_cfg: $ae_api,
+            event_id,
+            event_badge_id: $lq__event_badge_obj.event_badge_id,
+            data_kv: { cfg_json: Object.keys(new_cfg).length ? JSON.stringify(new_cfg) : null },
+            log_lvl
+        });
+        lock_sizes_status = 'done';
+        setTimeout(() => { lock_sizes_status = 'idle'; }, 1500);
+    } catch (err) {
+        console.error('Badge print controls: reset font sizes error:', err);
+        lock_sizes_status = 'error';
+        setTimeout(() => { lock_sizes_status = 'idle'; }, 2500);
+    }
+}
+
 // TC modal ref for the lead scanning terms & conditions dialog
 let tc_dialog_ref: HTMLDialogElement | undefined;
 
@@ -1476,6 +1583,50 @@ let allow_tracking_open = $derived(
                     </label>
                 </div>
 
+                <!-- === LOCK FONT SIZES ===
+                     Saves the current font_size_* values into event_badge.cfg_json.font_sizes
+                     so they survive page reloads and apply on every kiosk, not just this machine.
+                     Use this for attendees with long names that auto-sizing can't handle well.
+                     Trusted-only. -->
+                <div class="space-y-1 px-1 pt-1">
+                    <p class="field-label px-1">Locked Font Sizes</p>
+                    <div class="flex gap-1.5">
+                        <button
+                            type="button"
+                            class="btn btn-xs flex-1 transition-colors {lock_sizes_status === 'done' ? 'preset-filled-success' : lock_sizes_status === 'error' ? 'preset-tonal-error' : lock_sizes_status === 'saving' ? 'preset-tonal-surface' : sizes_are_dirty ? 'preset-filled-warning' : 'preset-tonal-surface'}"
+                            disabled={lock_sizes_status === 'saving' || !has_any_size_override}
+                            onclick={lock_font_sizes}
+                            title="Save current font sizes to this badge record — applies on all kiosks">
+                            {#if lock_sizes_status === 'saving'}
+                                <LoaderCircle size="11" class="mr-1 animate-spin" /> Saving…
+                            {:else if lock_sizes_status === 'done'}
+                                <Check size="11" class="mr-1" /> Locked
+                            {:else if lock_sizes_status === 'error'}
+                                Error
+                            {:else}
+                                🔒 Lock Sizes
+                            {/if}
+                        </button>
+                        {#if saved_font_sizes || has_any_size_override}
+                            <button
+                                type="button"
+                                class="btn btn-xs preset-tonal-warning shrink-0"
+                                disabled={lock_sizes_status === 'saving'}
+                                onclick={reset_font_sizes_to_auto}
+                                title="Reset all font sizes to auto and clear saved sizes from badge record">
+                                ↺ Auto
+                            </button>
+                        {/if}
+                    </div>
+                    {#if saved_font_sizes}
+                        <p class="px-1 text-[9px] text-green-600 dark:text-green-400">
+                            Sizes locked on this badge
+                            {#if saved_font_sizes.name}· Name {saved_font_sizes.name}px{/if}
+                            {#if saved_font_sizes.title}· Title {saved_font_sizes.title}px{/if}
+                        </p>
+                    {/if}
+                </div>
+
                 <!-- Print Position Offset
              Per-browser calibration for physical printer alignment.
              Stored in localStorage by the parent page — each workstation keeps
diff --git a/src/routes/events/[event_id]/(badges)/badges/[badge_id]/print/+page.svelte b/src/routes/events/[event_id]/(badges)/badges/[badge_id]/print/+page.svelte
index 760c93fa..9b0d3e2c 100644
--- a/src/routes/events/[event_id]/(badges)/badges/[badge_id]/print/+page.svelte
+++ b/src/routes/events/[event_id]/(badges)/badges/[badge_id]/print/+page.svelte
@@ -100,11 +100,41 @@ function send_review_email() {
 // Controls live in Comp_badge_print_controls (right panel) via $bindable().
 // Constants and adjust logic are defined there; only the state lives here so
 // the values can be forwarded to both the controls and the badge render.
+//
+// Initialization order: badge cfg_json.font_sizes takes precedence (persisted per-badge),
+// falling back to null (auto) on first load. The controls panel's "Lock Sizes" button
+// saves current sizes back to cfg_json so they survive page reloads and cross-kiosk.
 let font_size_name: number | null = $state(null);
 let font_size_title: number | null = $state(null);
 let font_size_affiliations: number | null = $state(null);
 let font_size_location: number | null = $state(null);
 
+// Track whether we've applied the saved sizes for this badge yet.
+// Prevents re-applying on every liveQuery tick after the user adjusts sizes.
+let _font_sizes_loaded_for: string | null = null;
+
+$effect(() => {
+    const badge = $lq__event_badge_obj;
+    if (!badge?.event_badge_id) return;
+    // Only apply once per badge ID — don't clobber user adjustments on background refreshes
+    if (_font_sizes_loaded_for === badge.event_badge_id) return;
+    _font_sizes_loaded_for = badge.event_badge_id;
+    try {
+        const cfg = typeof badge.cfg_json === 'string'
+            ? JSON.parse(badge.cfg_json)
+            : (badge.cfg_json ?? {});
+        const fs = cfg?.font_sizes;
+        if (fs) {
+            font_size_name = fs.name ?? null;
+            font_size_title = fs.title ?? null;
+            font_size_affiliations = fs.affiliations ?? null;
+            font_size_location = fs.location ?? null;
+        }
+    } catch {
+        // Malformed cfg_json — stay with null (auto) for all fields
+    }
+});
+
 // Per-browser print workstation tweaks.
 // Each workstation/printer is calibrated independently — values are stored in
 // localStorage so they survive page reloads and browser restarts without any